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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