Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Rollforward (Details)

v3.8.0.1
Fair Value Measurements - Rollforward (Details) - Level 3 - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Assets Measured on Recurring Basis [Roll Forward]    
Beginning balance $ 5,552 $ 78,177
Issuance of contingent consideration 2,576,633  
Change in fair value 29,624 (72,625)
Ending balance 2,611,809 5,552
Warrant liability    
Fair Value, Assets Measured on Recurring Basis [Roll Forward]    
Beginning balance 5,501 27,606
Change in fair value 2,684 (22,105)
Ending balance   5,501
Warrant liability | Recurring basis    
Fair Value, Assets Measured on Recurring Basis [Roll Forward]    
Beginning balance 5,501  
Ending balance 8,185 5,501
Unit purchase option liability    
Fair Value, Assets Measured on Recurring Basis [Roll Forward]    
Beginning balance 51 50,571
Change in fair value 26,940 (50,520)
Ending balance 26,991 51
Contingent consideration    
Fair Value, Assets Measured on Recurring Basis [Roll Forward]    
Beginning balance 0  
Issuance of contingent consideration 2,576,633  
Ending balance 2,576,633 0
Investor rights obligation | Recurring basis    
Fair Value, Assets Measured on Recurring Basis [Roll Forward]    
Beginning balance $ 0 0
Ending balance   $ 0