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Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Deferred income tax assets: |  |
Inventory basis difference | $ 1,576 | $ 1,475
Accounts receivable reserve | 201 | 299
Stock based compensation | 904 | 614
Pension liability | 1,604 | 3,595
Employee benefit accrual | 601 | 459
Product liability and warranty reserves | 1,417 | 1,120
Expenses not deductible for tax purposes | 1,064 | 487
Foreign net operating loss | 2,954 | 1,608
State net operating loss | 76 | 82
Other | 34 | 3
Total deferred income tax assets | 10,431 | 9,742
Less: Valuation allowance | (711) | (825)
Net deferred income tax assets | 9,720 | 8,917
Deferred income tax liabilities: |  |
Inventory basis differences | 0 | (253)
Depreciation | (3,068) | (2,867)
Intangible assets | (1,277) | (1,011)
Deferred revenue | (66) | (135)
Expenses not deductible for tax purposes | (461) | (777)
Total deferred income tax liabilities | (4,872) | (5,043)
Net deferred income tax assets | $ 4,848 | $ 3,874

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