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Borrowings - DSI Business Owner (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 29, 2016
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Debt Instrument [Line Items]          
Gain on settlement of note payable and licensed technology   $ 0 $ 151 $ 0 $ 1,019
Affiliated Entity          
Debt Instrument [Line Items]          
Payable to related party $ 1,100        
Extinguishment of debt, amount $ 300        
Gain on settlement of note payable and licensed technology         $ 900