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Debt - Kanis S. A. Indebtedness (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Jan. 31, 2017
Mar. 31, 2017
Mar. 31, 2016
Apr. 01, 2016
Debt Instrument        
Loss on extinguishment of debt   $ 194 $ 0  
Convertible Debt | Two Million 8 Percent Shareholder Note Due September 2017        
Debt Instrument        
Face amount of debt       $ 2,000
Interest rate (as a percent)       8.00%
Repayments of notes payable $ 2,000      
Loss on extinguishment of debt $ 200