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Income Taxes (Details Textual) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Income Taxes (Additional Textual) [Abstract] |  |  |  |
Valuation allowance for deferred tax assets of US units | $ 2,252 | $ 12,066 | $ 16,604 | $ 14,649
Additional foreign interest and penalties | 910 |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |
Pre-tax income | 7,385 | 1,633 | (9,528) |
2012 and 2011 Combined pre tax income | 9,000 |  |  |
Net operating losses used to offset tax expenses | 9,000 |  |  |
Fully utilization period of net operating losses | 2 years |  |  |
Reversal of Deferred tax assets valuation allowance | 8,512 |  |  |
Provision for income taxes | (7,067) | (968) | 418 |
Utilization of foreign tax credits | 1,302 | 0 |  |
U.S. deferred tax valuation allowance | 9,814 | 704 | (2,892) |
Carry forward year of losses | 20 years |  |  |
Net operating losses balances |  |  | 2,035 |
Increase in deferred tax assets, prior to the effects on the valuation allowance | 2,926 |  |  |
U.S. federal statutory rate | 34.00% |  |  |
Foreign tax credit carryforward | 2,252 | 3,554 |  |
Deferred taxes on undistributed earnings | 0 |  |  |
Distribution to US Parent company | 48,000 |  |  |
Distribution pertained to earnings and profits earned | 9,000 |  |  |
Impact of tax in earnings and profits | 3,079 |  |  |
Unrecognized tax benefits | 873 |  |  |
Removed penalties of closed tax years |  |  | 15 |
Net reduction in foreign interest and penalties |  | 43 |  |
Foreign Tax Authority [Member] |  |  |  |
Income Taxes (Additional Textual) [Abstract] |  |  |  |
Additional foreign interest and penalties |  |  | 30 |
Increase decrease in interest and penalties | 443 |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |
Increase in deferred tax assets, prior to the effects on the valuation allowance |  | (1,219) | (937) |
Domestic Tax Authority [Member] |  |  |  |
Income Taxes (Additional Textual) [Abstract] |  |  |  |
Valuation allowance for deferred tax assets of US units | 2,252 |  | 16,604 |
Increase decrease in interest and penalties | 245 |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |
Increase in deferred tax assets, prior to the effects on the valuation allowance | $ (12,740) | $ (704) | $ 2,892 |

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