Debt (Details) - USD ($)					3 Months Ended		6 Months Ended
	May 05, 2022	Apr. 05, 2022	May 05, 2021	Oct. 16, 2020	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Debt instruments
Loss (gain) on extinguishment of debt	$ 700,000		$ 4,100,000		$ (650,000)	$ 4,089,000	$ (650,000)	$ 4,089,000
Warrant exercise price (in dollars per share)			$ 0.01
Equity subject to warrant exercise (as a percent)			0.50%
Current portion of long-term debt, net									$ 3,500,000
Long-term Debt, net					27,217,000		27,217,000		25,886,000
Long-term debt, net					27,200,000		27,200,000
Minimum liquidity balance							25,000,000.0
Gain loss on issuance of warrant obligation			$ 4,600,000
Gain (Loss) on fees paid on behalf of lender			100,000
Gain (Loss) on fair value adjustment of debt			$ 600,000
Gain (Loss) on prepayment fees	900,000
Gain (Loss) on derecognition of deferred financing fees	900,000
Gain (Loss) on legal and consulting fees	100,000
Gain (Loss) on allocation of reacquisition price to warrant obligation	$ 200,000
Note Purchase and Guarantee Agreement
Debt instruments
Minimum asset coverage ratio	1.25%
Note Purchase and Guarantee Agreement | Any Date After June 30, 2022 if Asset Valuation is Greater Than $25.0 million
Debt instruments
Minimum liquidity balance	$ 15,000,000.0
Note Purchase and Guarantee Agreement | Any Date After June 30, 2022 if Asset Valuation is Less Than or Equal to $20.0 million
Debt instruments
Minimum liquidity balance	25,000,000.0
2020 Term Loan
Debt instruments
Repayment of revolving credit facility				$ 875,000
Face value of debt				$ 35,000,000.0
Margin added to variable rate (as a percent)				1.50%
Interest rate (as a percent)				8.00%
Warrant exercise price (in dollars per share)			$ 0.01
Equity subject to warrant exercise (as a percent)			0.50%
Long term debt current, Gross									3,500,000
Debt issuance costs, net, current									(1,239,000)
Current portion of long-term debt, net									3,500,000
Long term debt noncurrent, Gross									27,125,000
Debt issuance costs, noncurrent, net					(2,783,000)		(2,783,000)
Long-term Debt, net					27,217,000		27,217,000		25,886,000
Long-term Debt, Gross									30,625,000
Debt issuance costs, net					(2,783,000)		(2,783,000)		(1,239,000)
Long-term debt, net					27,217,000		27,217,000		29,386,000
Gain (Loss) on allocation of reacquisition price to warrant obligation	$ 2,600,000
Maturities of Long-term Debt [Abstract]
Amount outstanding									$ 30,625,000
2021 Term Loan
Debt instruments
Face value of debt			$ 5,000,000.0
Margin added to variable rate (as a percent)			1.50%
Interest rate (as a percent)			9.00%
Increase in interest rate (as a percent)			1.00%
Senior secured notes
Debt instruments
Long term debt noncurrent, Gross					30,000,000		30,000,000
Long-term Debt, Gross					30,000,000		30,000,000
Maturities of Long-term Debt [Abstract]
Amount outstanding					$ 30,000,000		$ 30,000,000
Senior secured notes | Any Date Ending Prior on or Prior to June 30, 2022
Debt instruments
Minimum liquidity balance, subsequent period		$ 25,000,000.0
Senior secured notes | Note Purchase and Guarantee Agreement
Debt instruments
Percentage of purchase price	94.00%
Face value of debt	$ 30,000,000.0
Interest rate (as a percent)	8.875%
Minimum asset coverage ratio	1.25%
Percentage of Fee on failure to achieve ESG KPI Goal	1.00%
Percentage of ESG KPI Goal	90.00%
Periodic payment	$ 1,500,000
Senior secured notes | Note Purchase and Guarantee Agreement | Any Date Ending Prior on or Prior to June 30, 2022
Debt instruments
Minimum liquidity balance	15,000,000.0
Senior secured notes | Note Purchase and Guarantee Agreement | Any Date After June 30, 2022 if Asset Valuation is $20.0 million but Less than $25.0 million
Debt instruments
Minimum liquidity balance	$ 20,000,000.0