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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jul. 01, 2012	Jul. 26, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	BIG 5 SPORTING GOODS CORPORATION
Entity Central Index Key	0001156388
Document Type	10-Q
Document Period End Date	Jul. 01, 2012
Amendment Flag	false
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-30
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		21,696,393

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jul. 01, 2012	Jan. 01, 2012
Current assets:
Cash and cash equivalents	$ 6,246	$ 4,900
Accounts receivable, net of allowances of $91 and $142, respectively	12,110	13,106
Merchandise inventories, net	289,697	264,278
Prepaid expenses	8,518	7,972
Deferred income taxes	8,421	8,410
Total current assets	324,992	298,666
Property and equipment, net	71,458	75,369
Deferred income taxes	14,659	13,236
Other assets, net of accumulated amortization of $510 and $383,respectively	2,244	2,360
Goodwill	4,433	4,433
Total assets	417,786	394,064
Current liabilities:
Accounts payable	105,740	77,593
Accrued expenses	52,917	62,547
Current portion of capital lease obligations	1,662	1,617
Total current liabilities	160,319	141,757
Deferred rent, less current portion	21,536	22,483
Capital lease obligations, less current portion	3,327	3,145
Long-term debt	71,372	63,476
Other long-term liabilities	7,049	6,613
Total liabilities	263,603	237,474
Commitments and contingencies
Stockholders' equity:
Common stock, $0.01 par value, authorized 50,000,000 shares; issued 23,593,529 and 23,483,815 shares, respectively; outstanding 21,696,793 and 21,890,970 shares, respectively	236	235
Additional paid-in capital	100,114	99,665
Retained earnings	78,506	79,037
Less: Treasury stock, at cost; 1,896,736 and 1,592,845 shares, respectively	(24,673)	(22,347)
Total stockholders' equity	154,183	156,590
Total liabilities and stockholders' equity	$ 417,786	$ 394,064

Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Jul. 01, 2012	Jan. 01, 2012
Condensed Consolidated Balance Sheets [Abstract]
Allowance for doubtful accounts receivable, current	$ 91	$ 142
Accumulated amortization on other assets	$ 510	$ 383
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	23,593,529	23,483,815
Common stock, shares outstanding	21,696,793	21,890,970
Treasury stock, shares	1,896,736	1,592,845

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Condensed Consolidated Statements of Operations [Abstract]
Net sales	$ 226,612	$ 219,588	$ 445,108	$ 440,731
Cost of sales	153,536	147,846	304,604	296,806
Gross profit	73,076	71,742	140,504	143,925
Selling and administrative expense	68,591	66,844	135,176	134,106
Operating income	4,485	4,898	5,328	9,819
Interest expense	576	601	1,176	1,206
Income before income taxes	3,909	4,297	4,152	8,613
Income taxes	1,351	1,192	1,438	2,748
Net income	$ 2,558	$ 3,105	$ 2,714	$ 5,865
Earnings per share:
Basic	$ 0.12	$ 0.14	$ 0.13	$ 0.27
Diluted	0.12	0.14	0.13	0.27
Dividends per share	$ 0.075	$ 0.075	$ 0.15	$ 0.15
Weighted-average shares of common stock outstanding:
Basic	21,424	21,672	21,457	21,645
Diluted	21,539	21,850	21,610	21,923

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011
Cash flows from operating activities:
Net income	$ 2,714	$ 5,865
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation and amortization	9,433	9,228
Impairment of store assets	208	576
Share-based compensation	903	897
Excess tax benefit related to share-based awards	(3)	(83)
Amortization of debt issuance costs	127	163
Deferred income taxes	(1,434)	(894)
Gain on disposal of property and equipment	(8)	(238)
Changes in operating assets and liabilities:
Accounts receivable, net	788	1,280
Merchandise inventories, net	(25,419)	(27,325)
Prepaid expenses and other assets	(557)	(113)
Accounts payable	29,965	11,336
Accrued expenses and other long-term liabilities	(10,273)	(11,202)
Net cash provided by (used in) operating activities	6,444	(10,510)
Cash flows from investing activities:
Purchases of property and equipment	(4,337)	(3,877)
Proceeds from solar energy rebate		250
Proceeds from disposal of property and equipment		488
Net cash used in investing activities	(4,337)	(3,139)
Cash flows from financing activities:
Principal borrowings under revolving credit facility	108,170	102,916
Principal payments under revolving credit facility	(100,274)	(87,188)
Changes in book overdraft	(1,925)	2,022
Principal payments under capital lease obligations	(899)	(1,058)
Proceeds from exercise of share option awards	37	267
Excess tax benefit related to share-based awards	3	83
Purchases of treasury stock	(2,326)
Tax withholding payments for share-based compensation	(282)	(283)
Dividends paid	(3,265)	(3,272)
Net cash (used in) provided by financing activities	(761)	13,487
Net increase (decrease) in cash and cash equivalents	1,346	(162)
Cash and cash equivalents at beginning of period	4,900	5,620
Cash and cash equivalents at end of period	6,246	5,458
Supplemental disclosures of non-cash investing and financing activities:
Property and equipment acquired under capital leases	1,192	227
Property and equipment purchases accrued	1,003	657
Solar energy rebate receivable		500
Supplemental disclosures of cash flow information:
Interest paid	1,055	1,013
Income taxes paid	$ 193	$ 1,768

Description of Business

6 Months Ended

Jul. 01, 2012

Description of Business/Summary of Significant Accounting Policies [Abstract]

Description of Business

(1) Description of Business

Business

Big 5 Sporting Goods Corporation (the “Company”) is a leading sporting goods retailer in the western United States, operating 407 stores in 12 states at July 1, 2012. The Company provides a full-line product offering in a traditional sporting goods store format that averages approximately 11,000 square feet. The Company’s product mix includes athletic shoes, apparel and accessories, as well as a broad selection of outdoor and athletic equipment for team sports, fitness, camping, hunting, fishing, tennis, golf, snowboarding and roller sports. The Company is a holding company that operates as one business segment through Big 5 Corp., its wholly-owned subsidiary, and Big 5 Services Corp., which is a wholly-owned subsidiary of Big 5 Corp. Big 5 Services Corp. provides a centralized operation for the issuance and administration of gift cards.

The accompanying interim unaudited condensed consolidated financial statements (“Interim Financial Statements”) of the Company and its wholly-owned subsidiaries have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and are presented in accordance with the requirements of Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, these Interim Financial Statements do not include all of the information and notes required by GAAP for complete financial statements. These Interim Financial Statements should be read in conjunction with the consolidated financial statements and notes thereto for the fiscal year ended January 1, 2012 included in the Company’s Annual Report on Form 10-K. In the opinion of management, the Interim Financial Statements included herein contain all adjustments, including normal recurring adjustments, considered necessary to present fairly the Company’s financial position, the results of operations and cash flows for the periods presented.

The operating results and cash flows of the interim periods presented herein are not necessarily indicative of the results to be expected for any other interim period or the full year.

Summary of Significant Accounting Policies

6 Months Ended

Jul. 01, 2012

Description of Business/Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

(2) Summary of Significant Accounting Policies

Consolidation

The accompanying Interim Financial Statements include the accounts of Big 5 Sporting Goods Corporation, Big 5 Corp. and Big 5 Services Corp. Intercompany balances and transactions have been eliminated in consolidation.

Reporting Period

The Company follows the concept of a 52-53 week fiscal year, which ends on the Sunday nearest December 31. Fiscal year 2012 is comprised of 52 weeks and ends on December 30, 2012. Fiscal year 2011 was comprised of 52 weeks and ended on January 1, 2012. The fiscal interim periods in fiscal 2012 and 2011 are each comprised of 13 weeks.

Recently Issued Accounting Updates

In September 2011, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) No. 2011-08, Intangibles—Goodwill and Other. ASU No. 2011-08 is intended to simplify goodwill impairment testing by adding a qualitative review step to assess whether the required quantitative impairment analysis that exists today is necessary. ASU No. 2011-08 permits an entity to first perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If it is concluded that this is the case, it is necessary to perform the currently prescribed two-step goodwill impairment test. Otherwise, the two-step goodwill impairment test is not required. Additionally, an entity has the option to bypass the qualitative assessment in any period and proceed directly to performing the first step of the two-step goodwill impairment test. An entity may resume performing the qualitative assessment in any subsequent period. ASU No. 2011-08 is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of ASU No. 2011-08 in fiscal 2012 did not have a material impact on the Company’s Interim Financial Statements.

Use of Estimates

Management has made a number of estimates and assumptions relating to the reporting of assets, liabilities and stockholders’ equity and the disclosure of contingent assets and liabilities at the date of the Interim Financial Statements and reported amounts of revenue and expense during the reporting period to prepare these Interim Financial Statements in conformity with GAAP. Certain items subject to such estimates and assumptions include the carrying amount of merchandise inventories, property and equipment, and goodwill; valuation allowances for receivables, sales returns and deferred income tax assets; estimates related to gift card breakage and the valuation of share-based compensation awards; and obligations related to asset retirements, litigation, self-insurance liabilities and employee benefits. Actual results could differ significantly from these estimates under different assumptions and conditions.

Revenue Recognition

The Company earns revenue by selling merchandise primarily through its retail stores. Revenue is recognized when merchandise is sold and delivered to the customer and is shown net of estimated returns during the relevant period. The allowance for sales returns is estimated based upon historical experience.

Cash received from the sale of gift cards is recorded as a liability, and revenue is recognized upon the redemption of the gift card or when it is determined that the likelihood of redemption is remote (“gift card breakage”) and no liability to relevant jurisdictions exists. The Company determines the gift card breakage rate based upon historical redemption patterns and recognizes gift card breakage on a straight-line basis over the estimated gift card redemption period (20 quarters as of the end of the second quarter of fiscal 2012). The Company recognized approximately $104,000 and $207,000 in gift card breakage revenue for the 13 and 26 weeks ended July 1, 2012, respectively, compared to approximately $105,000 and $210,000 in gift card breakage revenue for the 13 and 26 weeks ended July 3, 2011, respectively.

The Company records sales tax collected from its customers on a net basis, and therefore excludes it from revenue as defined in Accounting Standards Codification (“ASC”) 605, Revenue Recognition.

Share-Based Compensation

The Company accounts for its share-based compensation in accordance with ASC 718, Compensation—Stock Compensation. The Company recognizes compensation expense on a straight-line basis over the requisite service period using the fair-value method for share option awards, nonvested share awards and nonvested share unit awards granted with service-only conditions. See Note 9 to the Interim Financial Statements for a further discussion on share-based compensation.

Valuation of Merchandise Inventories

The Company’s merchandise inventories are made up of finished goods and are valued at the lower of cost or market using the weighted-average cost method that approximates the first-in, first-out (“FIFO”) method. Average cost includes the direct purchase price of merchandise inventory, net of certain vendor allowances and cash discounts, and allocated overhead costs associated with the Company’s distribution center.

Management regularly reviews inventories and records valuation reserves for merchandise damage and defective returns, merchandise items with slow-moving or obsolescence exposure and merchandise that has a carrying value that exceeds market value. Because of its merchandise mix, the Company has not historically experienced significant occurrences of obsolescence.

Inventory shrinkage is accrued as a percentage of merchandise sales based on historical inventory shrinkage trends. The Company performs physical inventories of its stores at least once per year and cycle counts inventories at its distribution center throughout the year. The reserve for inventory shrinkage represents an estimate for inventory shrinkage for each store since the last physical inventory date through the reporting date.

These reserves are estimates, which could vary significantly, either favorably or unfavorably, from actual results if future economic conditions, consumer demand and competitive environments differ from expectations.

Valuation of Long-Lived Assets

The Company reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable.

Long-lived assets are reviewed for recoverability at the lowest level in which there are identifiable cash flows (“asset group”), usually at the store level. The carrying amount of an asset group is not considered recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset group. If the asset group is determined not to be recoverable, then an impairment charge will be recognized in the amount by which the carrying amount of the asset group exceeds its fair value, determined using discounted cash flow valuation techniques, as defined in ASC 360, Property, Plant, and Equipment.

The Company determines the sum of the undiscounted cash flows expected to result from the asset group by projecting future revenue and operating expense for each store under consideration for impairment. The estimates of future cash flows involve management judgment and are based upon assumptions about expected future operating performance. Assumptions used in these forecasts are consistent with internal planning, and include assumptions about sales, margins, operating expense and advertising expense in relation to the current economic environment and future expectations, competitive factors in various markets and inflation. The actual cash flows could differ from management’s estimates due to changes in business conditions, operating performance and economic conditions.

See Note 3 to the Interim Financial Statements for a further discussion of the impairment of long-lived assets.

Leases and Deferred Rent

The Company accounts for its leases under the provisions of ASC 840, Leases.

The Company evaluates and classifies its leases as either operating or capital leases for financial reporting purposes. Operating lease commitments consist principally of leases for the Company’s retail store facilities, distribution center and corporate office. Capital lease obligations consist principally of leases for some of the Company’s distribution center delivery tractors, management information systems hardware and point-of-sale equipment for the Company’s stores.

Certain of the leases for the Company’s retail store facilities provide for payments based on future sales volumes at the leased location, which are not measurable at the inception of the lease. These contingent rents are expensed as they accrue.

Deferred rent represents the difference between rent paid and the amounts expensed for operating leases. Certain leases have scheduled rent increases, and certain leases include an initial period of free or reduced rent as an inducement to enter into the lease agreement (“rent holidays”). The Company recognizes rent expense for rent increases and rent holidays on a straight-line basis over the term of the underlying leases, without regard to when rent payments are made. The calculation of straight-line rent is based on the “reasonably assured” lease term as defined in ASC 840 and may exceed the initial non-cancelable lease term.

Landlord allowances for tenant improvements, or lease incentives, are recorded as deferred rent and amortized on a straight-line basis over the lease term as a component of rent expense.

Impairment of Long-Lived Assets

6 Months Ended

Jul. 01, 2012

Impairment of Long-Lived Assets [Abstract]

Impairment of Long-Lived Assets

(3) Impairment of Long-Lived Assets

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. In the second quarter of fiscal 2012 and 2011, the Company recognized pre-tax non-cash impairment charges of $0.2 million and $0.6 million, respectively, related to certain underperforming stores. The weak sales performance, coupled with future undiscounted cash flow projections, indicated that the carrying value of these stores’ assets exceeded their estimated fair values as determined by their future discounted cash flow projections. When projecting the stream of future cash flows associated with an individual store for purposes of determining long-lived asset recoverability, management makes assumptions, incorporating local market conditions, about key store variables including sales growth rates, gross margin and operating expenses. If economic conditions in the markets in which the Company conducts business remain weak or further deteriorate, or if other negative market conditions develop, the Company may experience additional impairment charges in the future for underperforming stores. These impairment charges are included in selling and administrative expense in the second quarter of fiscal 2012 and 2011 in the interim unaudited condensed consolidated statements of operations.

Store Closing Costs

6 Months Ended

Jul. 01, 2012

Store Closing Costs [Abstract]

Store Closing Costs

(4) Store Closing Costs

The Company expects to close three underperforming stores in fiscal 2012, which will not be relocated. Two of those stores were closed in the second quarter of fiscal 2012 while the remaining store is expected to close in the third quarter of fiscal 2012. The store closing costs primarily include lease termination costs which expire in fiscal 2014. The following table summarizes the activity of the Company’s store closing reserves:


	Severance Costs			Lease Termination Costs			Other Associated Costs			Total
	(In thousands)
Balance at January 1, 2012	$	—		$	—		$	—		$	—
Store closing costs		27			558			87			672
Payments		(10	)		(54	)		(56	)		(120	)

Balance at July 1, 2012	$	17		$	504		$	31		$	552

The Company recorded $0.7 million of expense related to the closure of two of these underperforming stores in the second quarter of fiscal 2012. This expense is reflected as part of selling and administrative expense in the accompanying interim unaudited condensed consolidated statement of operations. The Company expects to record an additional $0.4 million of expense related to the closure of the third underperforming store in the third quarter of fiscal 2012.

The current portion of accrued store closing costs is recorded in accrued expenses and the noncurrent portion is recorded in other long-term liabilities in the accompanying interim unaudited condensed consolidated balance sheet.

Description of Business (Details)	6 Months Ended
Description of Business (Details)	Jul. 01, 2012 ft² Store State Segment
Description of Business (Textual) [Abstract]
Number of operating stores \| Store	407
Number of states in which store operates \| State	12
Square feet of traditional sporting goods store \| ft²	11,000
Number of Operating Segments \| Segment	1

Summary of Significant Accounting Policies (Details)	3 Months Ended		6 Months Ended
Summary of Significant Accounting Policies (Details)	Jul. 01, 2012 USD ($)	Jul. 03, 2011 USD ($)	Jul. 01, 2012 USD ($) Quarter	Jul. 03, 2011 USD ($)
Summary of Significant Accounting Policies (Textual) [Abstract]
Reporting period, minimum			364 days
Reporting period, maximum			371 days
Interim reporting period			91 days	91 days
Estimated gift card redemption period \| Quarter			20
Recognized gift card breakage revenue \| $	$ 104,000	$ 105,000	$ 207,000	$ 210,000

Store Closing Costs (Details) $ in Thousands	6 Months Ended
Store Closing Costs (Details) $ in Thousands	Jul. 01, 2012 USD ($)
Summary of Store Closing Reserves
Balance at January 1, 2012
Store closing Costs	672
Payments	(120)
Balance at July 1, 2012	552
Severance Costs [Member]
Summary of Store Closing Reserves
Balance at January 1, 2012
Store closing Costs	27
Payments	(10)
Balance at July 1, 2012	17
Lease Termination Costs [Member]
Summary of Store Closing Reserves
Balance at January 1, 2012
Store closing Costs	558
Payments	(54)
Balance at July 1, 2012	504
Other Associated Costs [Member]
Summary of Store Closing Reserves
Balance at January 1, 2012
Store closing Costs	87
Payments	(56)
Balance at July 1, 2012	$ 31

Store Closing Costs (Details Textual) $ in Millions	6 Months Ended
Store Closing Costs (Details Textual) $ in Millions	Jul. 01, 2012 USD ($) Store
Franchisor Disclosure [Line Items]
Number of Stores	407
Q2 [Member]
Franchisor Disclosure [Line Items]
Number of Stores	2
Expense related to the closure of underperforming stores \| $	$ 0.7
Q3 [Member]
Franchisor Disclosure [Line Items]
Number of Stores	1
Expense related to the closure of underperforming stores \| $	$ 0.4

Accrued Expenses (Details) - USD ($) $ in Thousands	Jul. 01, 2012	Jan. 01, 2012
Summary of accrued expenses
Payroll and related expense	$ 18,180	$ 19,691
Occupancy costs	8,417	8,722
Sales tax	5,793	9,235
Advertising	4,453	7,685
Other	16,074	17,214
Accrued expenses	$ 52,917	$ 62,547

Long-Term Debt (Details)	6 Months Ended
Long-Term Debt (Details)	Jul. 01, 2012
Level I [Member]
Average daily excess availability for the preceding fiscal quarter
Average Daily Excess Availability	Greater than or equal to $70,000,000
LIBO Rate Applicable Margin	1.50%
Base Rate Applicable Margin	0.50%
Level II [Member]
Average daily excess availability for the preceding fiscal quarter
Average Daily Excess Availability	Greater than or equal to $40,000,000
LIBO Rate Applicable Margin	1.75%
Base Rate Applicable Margin	0.75%
Level III [Member]
Average daily excess availability for the preceding fiscal quarter
Average Daily Excess Availability	Less than $40,000,000
LIBO Rate Applicable Margin	2.00%
Base Rate Applicable Margin	1.00%

Long-Term Debt (Details Textual) $ in Thousands	6 Months Ended
Long-Term Debt (Details Textual) $ in Thousands	Jul. 01, 2012 USD ($)	Jan. 01, 2012 USD ($)
Long-Term Debt (Textual) [Abstract]
Revolving credit facility	$ 140,000
First tier of increase to the borrowing capacity	165,000
Additional increase in aggregate availability	200,000
Sublimit for issuances of letters of credit	50,000
Sublimit for swingline loans	$ 20,000
Fixed charge coverage ratio	1
Debt Instrument, Covenant Description	Obligations under the Credit Facility are secured by a general lien and perfected security interest in substantially all of the Company’s assets. The Credit Agreement contains covenants that require the Company to maintain a fixed charge coverage ratio of not less than 1.0:1.0 in certain circumstances, and limit the Company’s ability to, among other things, incur liens, incur additional indebtedness, transfer or dispose of assets, change the nature of the business, guarantee obligations, pay dividends or make other distributions or repurchase stock, and make advances, loans or investments
Interest Rate, Description	the highest of (a) the Federal funds rate, as in effect from time to time, plus one-half of one percent (0.50%), (b) the LIBO rate, as adjusted to account for statutory reserves, plus one percent (1.00%), or (c) the rate of interest in effect for such day as publicly announced from time to time by Wells Fargo as its “prime rate.”
Commitment fees assessed	0.375%
Maturity date of Credit Agreement	Oct. 31, 2016
Long-term revolving credit borrowings	$ 71,372	$ 63,476
Remaining borrowing availability	$ 64,500	$ 72,800

Income Taxes (Details) - USD ($) $ in Thousands	6 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Jul. 01, 2012	Jan. 01, 2012
Income Taxes (Textual) [Abstract]
Valuation Allowance	$ 0	$ 0
Consolidated federal income tax returns period	2008
State and local income tax returns period	2007
Unrecognized tax benefits	$ 0	0
Unrecognized tax benefits, period	over the next 12 months
Accrued interest or penalties	$ 0	$ 0

Share-based Compensation (Details)	3 Months Ended		6 Months Ended
Share-based Compensation (Details)	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Fair value of each share option award on the date of grant based on weighted-average assumption
Risk-free interest rate	1.20%	2.50%	1.20%	2.50%
Expected term	7 years 8 months 12 days	7 years 3 months 18 days	7 years 8 months 12 days	7 years 3 months 18 days
Expected volatility	53.00%	51.00%	53.00%	51.00%
Expected dividend yield	4.71%	3.62%	4.71%	3.62%

Share-based Compensation (Details 1) - $ / shares	6 Months Ended
Share-based Compensation (Details 1) - $ / shares	Jul. 01, 2012	Jul. 03, 2011
Nonvested Share Awards Activity [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested, shares, beginning balance	304,700
Granted, shares	145,100	152,100
Vested, shares	(107,675)
Forfeited, shares	(7,125)
Nonvested, shares, ending balance	335,000
Weighted average grant date fair value, beginning of period	$ 13.03
Weighted average grant date fair value, Granted	7.79
Weighted average grant date fair value, Vested	12.34
Weighted average grant date fair value, Forfeited	11.83
Weighted average grant date fair value, end of period	$ 11.01
Nonvested Share Unit Awards Activity [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested, share units, beginning	9,000
Granted, share units	12,000	9,000
Vested, share units	(2,250)
Forfeited, share units
Nonvested, share units, ending balance	18,750
Weighted average grant date fair value, beginning of period	$ 8.26
Weighted average grant date fair value, Granted	6.33
Weighted average grant date fair value, Vested	8.26
Weighted average grant date fair value, Forfeited
Weighted average grant date fair value, end of period	$ 7.02

Share-based Compensation (Details Textual) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2012 USD ($)	Jul. 03, 2011 USD ($)	Jul. 01, 2012 USD ($) Installment $ / shares shares	Jul. 03, 2011 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period over which unrecognized compensation expense is expected to be recognized (in years)			1 year 6 months
Vesting Rights (as percentage)	25.00%		25.00%
Maximum Expiration Period of Share Based Payment Awards Granted By the Company		10 years		10 years
Share-based Compensation (Textual) [Abstract]
Weighted Average Grant Date Fair Value of Share Option Awards \| $ / shares			$ 2.12	$ 3.12
Weighted Average Grant Date Fair Value of Nonvested Share Awards \| $ / shares			7.79	11.84
Weighted Average Grant Date Fair Value of Nonvested Share Unit Awards \| $ / shares			$ 6.33	$ 8.26
Total unrecognized compensation cost related to share option awards granted	$ 0.3		$ 0.3
Share based compensation expense	0.4	$ 0.5	$ 0.9	$ 0.9
Number of granted share option awards \| shares			15,000	12,000
Total fair value of the company's vested and non vested share awards			$ 0.8	$ 0.8
Number of annual installment for non vested share awards and non vested share unit awards \| Installment			4
Retirement of common stock for payment of withholding tax, shares \| shares			36,011
Retirement of common stock for payment of withholding tax			$ 0.3
Nonvested Share Awards Activity [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares \| shares			145,100	152,100
Total unrecognized compensation cost related to nonvested share awards and non vested share unit awards	$ 3.2		$ 3.2
Weighted-average period over which unrecognized compensation expense is expected to be recognized (in years)			2 years 10 months 24 days
Vesting Rights (as percentage)	25.00%		25.00%
Nonvested Share Unit Awards Activity [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, share units \| shares			12,000	9,000
Total unrecognized compensation cost related to nonvested share awards and non vested share unit awards	$ 0.1		$ 0.1
Weighted-average period over which unrecognized compensation expense is expected to be recognized (in years)			3 years 7 months 6 days
Vesting Rights (as percentage)	25.00%		25.00%
Maximum Expiration Period of Share Based Payment Awards Granted By the Company			10 years

Earnings Per Share (Details Textual) - shares	3 Months Ended		6 Months Ended
Earnings Per Share (Details Textual) - shares	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Earnings Per Share (Textual) [Abstract]
Outstanding and antidilutive share option awards	1,289,056	1,041,686	1,290,873	911,941
Nonvested Share Awards Activity [Member]
Earnings Per Share (Textual) [Abstract]
Outstanding and antidilutive share option awards	321,775	266,965		117

Commitments and Contingencies (Details)	Jul. 01, 2012 Complaint
Commitments and Contingencies (Textual) [Abstract]
Number of complaints	9

Subsequent Event (Details) - $ / shares	3 Months Ended		6 Months Ended
Subsequent Event (Details) - $ / shares	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Subsequent Event (Textual) [Abstract]
Dividends per share	$ 0.075	$ 0.075	$ 0.15	$ 0.15