Leases - Supplemental Balance Sheet Information (Details) - USD ($)	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease ROU assets	$ 1,660,631	$ 1,970,000	$ 0
Current operating lease liabilities	816,102		0
Non-current operating lease liabilities	1,307,384		$ 0
Total operating lease liabilities	$ 2,123,486	$ 2,503,000
Weighted-average remaining lease term–operating leases	2 years 6 months 4 days
Weighted-average discount rate–operating leases	6.50%