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Income Taxes (Details Textual) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Taxes (Textual) |  |  |
Accrued interest on income taxes | $ 10,000 | $ 9,000 | $ 9,000
U.S. federal [Member] |  |  |
Income Taxes (Textual) |  |  |
Net operating loss carryforwards | $ 26,100,000 |  |
Operating loss carry forwards expiration period | The federal net operating loss carry-forwards will start to expire in 2032, with the year ended December 31, 2015's loss expiring in 2036. |  |
Income tax reuturns period | U.S. federal tax returns for 2012 to 2015. |  |
Foreign [Member] |  |  |
Income Taxes (Textual) |  |  |
Net operating loss carryforwards | $ 52,000,000 |  |
Operating loss carry forwards amount no expiration | $ 47,400,000 |  |
Income tax reuturns period | Foreign tax returns generally for 2011 to 2015. |  |
State [Member] |  |  |
Income Taxes (Textual) |  |  |
Net operating loss carryforwards | $ 67,200,000 |  |
Operating loss carry forwards expiration period | The state net operating loss carry-forwards will start to expire in 2028, with the year ended December 31, 2015's loss expiring in 2036. |  |
Income tax reuturns period | State and local tax returns generally for 2011 to 2015. |  |

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