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Related Party Transactions - Narrative (Details) - USD ($)
4 Months Ended 12 Months Ended
Apr. 30, 2015
Dec. 31, 2016
President and CEO    
Related Party Transaction [Line Items]    
Note payable, individual ownership percentage   27.00%
Main Street Capital Corporation    
Related Party Transaction [Line Items]    
Common shares owned by stockholder (in shares)   7,711,517
Common shares owned, stockholder, percentage   21.00%
ABM | Director    
Related Party Transaction [Line Items]    
Revenue, related parties $ 45,000  
Nectar | Director    
Related Party Transaction [Line Items]    
Technology consulting fees paid, related party   $ 11,000
Outstanding payables due to related party   $ 0