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Income Taxes (Details Textual) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Tax Credit Carryforward [Line Items] |  |  |
Income (loss) before income taxes | $ 6,683 | $ 6,843 | $ 376
Valuation allowance, deferred tax asset, change in amount | 564 |  |
Valuation allowance, increase in net operating losses | 397 |  |
Valuation allowance, decrease in expiration of reserved state tax credit-carryforwards | 104 |  |
Valuation allowance, increase in net operating loss and credit carryforwards, tax deductions | 177 |  |
Valuation allowance, amount | 2,700 |  |
Change in valuation allowance | 491 | 468 | 338
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net | 693 |  |
Undistributed earnings of foreign subsidiaries | 2,050 |  |
Deferred tax assets, research credit | 363 |  |
Deferred Tax Assets, Tax Credit Carryforwards, State And Operating Loss Carryforwards, Foreign |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Valuation allowance, amount | 1,473 |  |
Deferred Tax Assets, Tax Credit Carryforwards And Operating Loss Carryforwards |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Valuation allowance, amount | 1,228 |  |
Alternative Minimum Tax |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Tax credit carryforward, amount | 132 |  |
Federal and State Tax Jurisdictions |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Tax credit carryforward, amount | 1,651 |  |
Federal |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Income (loss) before income taxes | 5,500 | 7,917 | 971
Federal | Research Tax Credit Carryforward |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Tax credit carryforward, amount | 2,654 |  |
State Tax Authority |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Tax credit carryforward, amount | 373 |  |
Change in valuation allowance | 491 |  |
State Tax Authority | Research Tax Credit Carryforward |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Tax credit carryforward, amount | 3,143 |  |
Foreign Tax Authority |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Operating loss carryforwards | 4,032 |  |
Tax credit carryforward, amount | $ 1,479 |  |

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