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Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Deferred income tax assets: |  |
Inventory basis difference | $ 1,475 | $ 1,464
Accounts receivable reserve | 299 | 320
Stock based compensation | 614 | 518
Pension liability | 3,595 | 3,839
Employee benefit accrual | 459 | 382
Environmental reserve | 0 | 450
Product liability and warranty reserves | 1,120 | 797
Expenses not deductible for tax purposes | 487 | 0
Foreign net operating loss | 1,608 | 374
State net operating loss | 82 | 279
Other | 3 | 0
Net deferred income tax assets | 9,742 | 8,423
Less: Valuation allowance | (825) | 0
Net deferred income tax assets | 8,917 | 8,423
Deferred income tax liabilities: |  |
Inventory basis differences | (253) | (246)
Depreciation | (2,867) | (3,924)
Intangible assets | (1,011) | (710)
Deferred revenue | (135) | (218)
Expenses not deductible for tax purposes | (777) | (397)
Total deferred income tax liabilities | (5,043) | (5,495)
Net deferred income tax assets | $ 3,874 | $ 2,928

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