Leases - Future Minimum Payments Under Non-cancelable Leases After Adoption of 842 (Details) - USD ($)	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Leases
2019 (excluding the six months ended June 30, 2019)	$ 1,917,285
2020	3,615,177
2021	2,421,637
2022	2,077,157
2023	1,797,423
Thereafter	6,487,401
Total future minimum lease payments	18,316,080
Less: imputed interest	4,063,320
Total lease obligations	14,252,760	$ 14,300,000
Less: current portion	2,836,010		$ 0
Long-term lease obligations	11,416,750		0
Finance Leases
2019 (excluding the six months ended June 30, 2019)	59,460
2020	118,920
2021	118,920
2022	118,920
2023	118,920
Thereafter	79,278
Total future minimum lease payments	614,418
Less: imputed interest	45,906
Total lease obligations	568,512
Less: current portion	101,741		101,741
Long-term lease obligations	$ 466,771		$ 517,261