Income Taxes - Tax benefit (Details) - USD ($)	12 Months Ended		24 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019
Income Taxes
Loss before provision for income taxes	$ (38,529,436)	$ (32,146,057)
Current:
Federal	10,000
Total current	10,000	0
Deferred:
Total deferred		$ 0
Total provision for income taxes	$ 10,000
Effective tax rate, differed from the federal statutory rate
Statutory rate (as a percent)	(21.00%)	(21.00%)
State taxes (as a percent)	(0.10%)	(5.60%)
Tax credits (as a percent)		(0.20%)
Goodwill and indefinite-lived intangible asset impairment (as a percent)		3.40%
Book loss on debt extinguishment (as a percent)	5.40%
Other (as a percent)	0.50%	1.00%
Effect of U.S. tax law change (as a percent)	0.00%
Valuation allowance (as a percent)	15.20%	22.40%
Effective tax rate (as a percent)			0.00%
Non-current deferred tax assets:
Net operating losses	$ 15,966,084	$ 12,156,279	$ 15,966,084
Tax credits	241,425	329,563	241,425
Stock compensation	1,363,578	1,479,325	1,363,578
Other		(573,441)
Gross non-current deferred tax assets	17,571,087	14,538,608	17,571,087
Valuation allowance	(13,884,133)	(8,512,820)	(13,884,133)
Net non-current deferred tax assets	3,686,954	6,025,788	3,686,954
Non-current deferred tax liabilities:
Other	(20,594)		(20,594)
Property and equipment	(3,666,360)	(6,025,788)	(3,666,360)
Net non-current deferred tax liability	(3,686,954)	$ (6,025,788)	$ (3,686,954)
Increase in valuation allowance	$ 5,371,313