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Commitments and Contingencies (Details) - USD ($)
$ in Thousands
3 Months Ended
Jul. 23, 2015
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Long-term Purchase Commitment [Line Items]        
Operating lease payments   $ 74 $ 126  
UTC Associates Inc. | Monetary Damages, Unpaid Services        
Long-term Purchase Commitment [Line Items]        
Lawsuit, damages sought $ 2,107      
UTC Associates Inc. | Monetary Damages, Breach of Alleged Guaranteed Minimum Provision        
Long-term Purchase Commitment [Line Items]        
Lawsuit, damages sought 1,107      
UTC Associates Inc. | Monetary Damages, Lost Revenue        
Long-term Purchase Commitment [Line Items]        
Lawsuit, damages sought $ 1,000      
Colorado | Comerica Bank        
Long-term Purchase Commitment [Line Items]        
Letters of credit outstanding, amount   $ 83   $ 83