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Income Taxes (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Income (loss) before income taxes |  |  |
United States | $ (37,682,000) | $ 2,622,000 | $ (21,526,000)
Foreign | 5,294,000 | 4,849,000 | 4,265,000
Income (loss) before income taxes | (32,388,000) | 7,471,000 | (17,261,000)
Current: |  |  |
United States, State | 82,000 | 163,000 | 309,000
Foreign | 738,000 | 1,646,000 | 1,528,000
Total current | 820,000 | 1,809,000 | 1,837,000
Deferred: |  |  |
Foreign | 826,000 | 585,000 | (1,525,000)
Total deferred | 826,000 | 585,000 | (1,525,000)
Income taxes | 1,646,000 | 2,394,000 | 312,000
Reconciliations of income taxes at the United States Federal statutory rate to the effective income tax rate |  |  |
Income (credit) at the United States statutory rate | (11,336,000) | 2,615,000 | (6,041,000)
State income taxes | 53,000 | 31,000 | 309,000
Unrecognized tax benefits | (832,000) | 899,000 | 842,000
Effect of change in valuation allowance | 12,662,000 | (3,160,000) | 6,550,000
Foreign income tax rate differentials | (788,000) | (365,000) | (1,490,000)
Restoration of foreign deferred tax assets |  |  | (1,329,000)
Foreign dividend | 383,000 |  |
Stock options | 1,298,000 |  |
Deemed distribution from foreign subsidiaries | 149,000 | 1,533,000 | 2,152,000
Other, net | 57,000 | 841,000 | (681,000)
Income taxes | 1,646,000 | 2,394,000 | 312,000
Significant components of current deferred income taxes |  |  |
Accrued compensation | 352,000 | 541,000 |
Inventories | 22,582,000 | 22,447,000 |
Warranty | 612,000 | 1,293,000 |
Other | 1,820,000 | 1,243,000 |
Deferred taxes, gross | 25,366,000 | 25,524,000 |
Valuation allowance | (25,062,000) | (24,160,000) |
Deferred taxes, net | 304,000 | 1,364,000 |
Significant components of long-term deferred income taxes |  |  |
Federal net operating loss carryforwards | 88,088,000 | 79,163,000 |
State net operating loss carryforwards | 1,181,000 | 2,685,000 |
Foreign net operating loss carryforwards | 1,853,000 | 1,821,000 |
Unremitted earnings of foreign subsidiaries | (8,580,000) | (10,370,000) |
Intangible assets | 661,000 | 803,000 |
Property, plant and equipment | 5,925,000 | 5,589,000 |
Accrued compensation | 368,000 |  |
Inventories | (215,000) |  |
Stock compensation | 4,378,000 | 3,970,000 |
Warranty | 36,000 | 51,000 |
Other | 917,000 | (3,814,000) |
Deferred taxes, gross | 121,477,000 | 104,454,000 |
Valuation allowance | (119,605,000) | (102,814,000) |
Deferred taxes, net | 1,872,000 | 1,640,000 |
Deferred tax assets | 146,800,000 |  |
Federal |  |  |
Tax credit carryforwards |  |  |
Tax credit carryforwards | 17,814,000 | 15,505,000 |
State |  |  |
Tax credit carryforwards |  |  |
Tax credit carryforwards | $ 9,051,000 | $ 9,051,000 |

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