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Commitments and Contingencies (Details Textual)
$ in Thousands
1 Months Ended 12 Months Ended
Nov. 30, 2014
USD ($)
ft²
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2014
USD ($)
Commitments and Contingencies (Textual)      
Rent expenses   $ 448 $ 690
Loss on lease termination   $ 371
Performance Shares [Member] | CEO [Member]      
Commitments and Contingencies (Textual)      
Performance shares with a grant date | shares   4,951,557  
Minnetonka [Member]      
Commitments and Contingencies (Textual)      
Rent expenses $ 180    
Area of land | ft² 9,000    
Annual rate per square foot $ 11    
Annual increases percentage 2.50%