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Income Taxes (Details 2) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Current deferred tax assets |  |  |
State tax | $ 1,586,000 | $ 1,197,000 | $ 1,061,000
Workers' compensation | 2,123,000 | 1,816,000 | 1,719,000
Health claims | 549,000 | 519,000 | 391,000
Vacation liability | 865,000 | 786,000 | 843,000
Allowance for doubtful accounts | 291,000 | 351,000 | 1,614,000
Inventories | 4,796,000 | 5,141,000 | 7,150,000
Sales incentive and advertising allowances | 408,000 | 399,000 | 781,000
State tax credit carry forward |  | 125,000 | 126,000
Accrued rent reserves |  |  | 5,000
Intangible rights write-off | 194,000 |  |
Acquisition expenses | 477,000 |  |
Unrealized foreign exchange gain or loss | 57,000 | 86,000 | 96,000
Other, net | 428,000 | 271,000 | 549,000
Current deferred tax assets, gross | 11,774,000 | 10,691,000 | 14,335,000
Less valuation allowances |  | (502,000) | (365,000)
Current deferred tax assets, net | 11,774,000 | 10,189,000 | 13,970,000
Long-term deferred tax assets (liabilities) |  |  |
Depreciation | (3,067,000) | (1,614,000) | 259,000
Goodwill and other intangibles amortization | (314,000) | (1,447,000) | (3,704,000)
Deferred compensation related to stock options | 5,485,000 | 4,841,000 | 6,562,000
Uncertain tax positions' unrecognized tax benefits | 1,115,000 | 1,438,000 | 1,250,000
Keymark investments basis difference |  | 663,000 | 447,000
Non-United States tax loss carry forward | 5,912,000 | 5,548,000 | 5,011,000
Tax effect on cumulative translation adjustment | (812,000) | (826,000) | (799,000)
Other | 811,000 | 641,000 | 1,095,000
Long-term deferred tax assets, gross | 9,130,000 | 9,244,000 | 10,121,000
Less valuation allowances | (6,279,000) | (6,665,000) | (4,523,000)
Long-term deferred tax assets | 2,851,000 | 2,579,000 | 5,598,000
Deferred tax assets | 21,400,000 | 19,200,000 | 25,000,000
Deferred tax liabilities | 6,700,000 | 6,500,000 | 5,500,000
Operating loss carryforwards |  |  |
Deferred tax valuation allowances | 6,300,000 | 7,200,000 | 4,900,000
Increase (decrease) in the valuation allowance | (900,000) | 2,300,000 | 2,500,000
Undistributed earnings indefinitely reinvested | 28,500,000 | 14,600,000 | 12,900,000
Foreign |  |  |
Operating loss carryforwards |  |  |
Tax loss carryforwards | 29,500,000 |  |
Foreign | Expiration, 2013 |  |  |
Operating loss carryforwards |  |  |
Tax loss carryforwards | 900,000 |  |
Foreign | Expiration, 2014 |  |  |
Operating loss carryforwards |  |  |
Tax loss carryforwards | 2,900,000 |  |
Foreign | Expiration, 2015 |  |  |
Operating loss carryforwards |  |  |
Tax loss carryforwards | 700,000 |  |
Foreign | Expiration, 2016 |  |  |
Operating loss carryforwards |  |  |
Tax loss carryforwards | $ 800,000 |  |

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