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Business Acquisition (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Nov. 12, 2015
Jun. 30, 2015
Dec. 31, 2014
Assets Acquired and Liabilities Assumed [Abstract]          
Goodwill $ 13,074 $ 13,074   $ 7,702 $ 7,702
EXINI [Member]          
Business Acquisition [Abstract]          
Percentage of voting interests acquired 96.81%   92.45%    
Assets Acquired and Liabilities Assumed [Abstract]          
Cash and cash equivalents     $ 7    
Accounts receivable     18    
Other current assets     108    
Property and equipment, net     22    
Accounts payable and accrued expenses     (807)    
Other current liabilities     (127)    
Intangible assets - technology     2,120    
Total identifiable net assets     1,341    
Noncontrolling interests     (504)    
Goodwill     5,372    
Total consideration transferred     $ 6,209    
EXINI [Member] | General and Administrative Expenses [Member]          
Business Acquisition [Abstract]          
Transaction costs   $ 391