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Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands | 7 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Concentration of Credit Risk and Single Source Suppliers |  |  |  |
Marketable securities |  | $ 22,619 | $ 24,513 |
Advertising Costs |  |  |  |
Advertising expense |  | 2,712 | 2,825 | $ 3,189
Foreign Currency Translation |  |  |  |
Foreign currency transaction gain (loss), before tax |  | 59 | 126 | $ 123
Net sales to SANG |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Contract amount | $ 35,600 |  |  |
Contracts revenue |  | $ 1,300 | $ 19,600 |
Net sales to SANG | Defense Products |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Contract amount | 21,200 |  |  |
Net sales to SANG | Sevices |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Contract amount | $ 14,400 |  |  |

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