Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Rollforward (Details)

v3.19.1
Fair Value Measurements - Rollforward (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Jun. 30, 2018
Mar. 31, 2018
Fair Value, Assets Measured on Recurring Basis [Roll Forward]      
Change in fair value of contingent consideration $ 180,402   $ 262,769
Level 3      
Fair Value, Assets Measured on Recurring Basis [Roll Forward]      
Beginning balance 9,060,730 $ 11,013,738 2,611,809
Payment of contingent consideration (228,678)    
Issuance of contingent consideration and royalty     8,115,909
Change in fair value of contingent consideration 227,979   286,020
Ending balance 9,060,031   11,013,738
Warrant liability | Recurring basis | Level 3      
Fair Value, Assets Measured on Recurring Basis [Roll Forward]      
Beginning balance 2,950 15,590 8,185
Change in fair value of contingent consideration 14,800   7,405
Ending balance 17,750   15,590
Unit purchase option liability | Level 3      
Fair Value, Assets Measured on Recurring Basis [Roll Forward]      
Beginning balance 7,216 42,837 26,991
Change in fair value of contingent consideration 32,777   15,846
Ending balance 39,993   42,837
Contingent consideration | Level 3      
Fair Value, Assets Measured on Recurring Basis [Roll Forward]      
Beginning balance 9,050,564 10,651,081 2,576,633
Payment of contingent consideration (228,678)    
Issuance of contingent consideration and royalty     7,875,165
Change in fair value of contingent consideration 180,402   199,283
Ending balance $ 9,002,288   10,651,081
Royalty Obligation | Level 3      
Fair Value, Assets Measured on Recurring Basis [Roll Forward]      
Beginning balance   304,230 0
Issuance of contingent consideration and royalty   $ 0 240,744
Change in fair value of contingent consideration     63,486
Ending balance     $ 304,230