Fair Value Measurements (Details) - Recurring basis - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	$ 13,965,626	$ 7,324,932
Level 3 \| Contingent consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	9,002,288	9,050,564
Level 3 \| Warrant liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	17,750	2,950
Level 3 \| Unit purchase option liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	$ 39,993	$ 7,216