Long-Term Debt (Details) - USD ($)					12 Months Ended
	Mar. 06, 2020	Dec. 09, 2019	Dec. 31, 2018	Jul. 06, 2018	Dec. 31, 2019	Dec. 31, 2018	Nov. 28, 2018	Oct. 01, 2018	Aug. 14, 2018
Debt Instrument [Line Items]
Redemption percentage					12.00%
Debt conversion, interest rate						7.625%
Interest rate			10.40%			10.40%
Additional warrant issuances, percentage						10.00%
Exercise price, percentage						110.00%
Warrant liability			$ 965,747		$ 16,335,000	$ 965,747
Reclassification of warrants to equity					857,072
Marathon Tranche One Loan
Debt Instrument [Line Items]
Face amount			10,000,000			10,000,000
Loss on extinguishment of debt					6,100,000
Premium payable on early payoff of debt					3,400,000
Revolving Loan
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 25,000,000			$ 25,000,000
Arosa
Debt Instrument [Line Items]
Warrants to purchase of common stock shares			894,821
Warrant exercise price (in usd per share)			$ 1.25			$ 1.25	$ 1.25
Additional warrant issuances, percentage						10.00%
Loss on extinguishment of debt						$ 2,200,000
Senior Notes
Debt Instrument [Line Items]
Amortization of debt issuance costs					$ 1,922,164	$ 2,348,289
Convertible Notes
Debt Instrument [Line Items]
Redemption percentage					112.00%
Convertible debt					$ 500,000
Face amount		$ 41,000,000.0
Interest rate		4.50%
Convertible debt, fair value		$ 38,500,000			$ 39,000,000.0
Debt issuance price, percentage					95.00%
Conversion price					$ 3.05
Debt instrument, minimum convertible amount					$ 5,000,000.0
Convertible debt, shares issued on conversion					185,186
Convertible debt, outstanding principal					$ 40,500,000
Change in fair value					1,000,000.0
Periodic debt payment					$ 1,500,000
Debt instrument, covenant terms, liquidity requirements, cash and cash equivalents		$ 8,000,000.0
Warrants to purchase of common stock shares		15,459,016
Common stock price, weighted average period					30 days
Warrant exercise price (in usd per share)		$ 3.05
Carrying amount of equity component, convertible debt		$ 400,000
Convertible Notes | Interest Expense
Debt Instrument [Line Items]
Convertible debt, gain on conversion					$ 83,089
Convertible Notes | Subsequent Event
Debt Instrument [Line Items]
Convertible debt	$ 4,500,000
Convertible debt, shares issued on conversion	1,546,889
Credit Agreement
Debt Instrument [Line Items]
Warrants to purchase of common stock shares						8,053,390
Warrant exercise price (in usd per share)			$ 1.25			$ 1.25
Fair Value adjustment of warrants						$ 965,747
Credit Agreement | Tranche 1
Debt Instrument [Line Items]
Unamortized discount			$ 722,174			722,174
Credit Agreement | Tranche 2
Debt Instrument [Line Items]
Fair Value adjustment of warrants						69,744
Prepaid expense and other assets			$ 1,830,435			$ 1,830,435
Loan Agreement
Debt Instrument [Line Items]
Face amount				$ 7,800,000
Interest rate				8.00%
Warrants to purchase of common stock shares				5,000,358
Warrant exercise price (in usd per share)				$ 2.00				$ 1.60	$ 1.21
Debt instrument term				5 years
Class of warrant or right outstanding								108,768	1,143,200
Loan Agreement | Arosa
Debt Instrument [Line Items]
Fair Value adjustment of warrants				$ 3,540,542