Current Liabilities and Debt Obligations, Enlightenment Capital Credit Agreement (Details)							3 Months Ended
	Nov. 24, 2020 USD ($)	Mar. 26, 2020 USD ($) Extension	Jul. 19, 2019 USD ($)	Jul. 18, 2019 USD ($)	Mar. 30, 2018 qtr	Jan. 25, 2017 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2020 USD ($) $ / shares	Dec. 31, 2020 USD ($)
Accounts Payable and Other Accrued Payables [Abstract]
Trade account payables							$ 9,800,000		$ 14,700,000
Accrued trade payables							$ 22,000,000		6,200,000
Enlightenment Capital Credit Agreement [Abstract]
Warrants exercise price (in dollars per share) | $ / shares							$ 1.665	$ 1.665
Credit Agreement [Member]
Enlightenment Capital Credit Agreement [Abstract]
Increase in interest rate							1.00%
Number of consecutive quarters | qtr					2
Effective interest rate							15.00%
Credit agreement transaction costs							$ 374,000
Senior term loan principal, including exit fee							17,200,000		17,200,000
Less: Unamortized discount, debt issuance costs, and lender fees							(281,000)		(865,000)
Senior term loan, net							16,919,000		$ 16,335,000
Interest expense								$ 800,000
Exit fee	$ 1,200,000						$ 825,000
Repayment of debt	17,400,000
Accrued interest	138,000
Legal fees	13,000
Repurchase of shares and warrants	$ 28,100,000
Enlightenment Capital Solutions Fund, II L.P. [Member]
Enlightenment Capital Credit Agreement [Abstract]
Senior term loan			$ 16,000,000
Maturity date			Jan. 15, 2021	Jan. 25, 2022
Effective interest rate			17.30%
Additional borrowings			$ 5,000,000
Principal amount			$ 16,000,000
Prepayment price percentage for January 26, 2019 to January 25, 2020			102.00%
Prepayment price percentage for January 26, 2020 to October 14, 2020			101.00%
Agent fee			$ 110,000
Exit fee			$ 1,200,000	$ 825,000
Number of quarterly maturity date extensions | Extension		4
Amount of increase in quarterly exit fee payable		$ 250,000
Amount of increase in exit fee payable		1,000,000
Amendment fee and out-of-pocket costs and expenses		$ 100,000
Enlightenment Capital Solutions Fund, II L.P. [Member] | Class A Common Stock [Member]
Enlightenment Capital Credit Agreement [Abstract]
Warrants issued to purchase shares of common stock (in shares) | shares						900,970
Common stock par value (in dollars per share) | $ / shares						$ 0
Percentage of warrants issued of common equity interests						2.50%
Warrants exercise price (in dollars per share) | $ / shares						$ 1.665
Warrants expiration date							Jan. 25, 2027
Emmett J. Wood [Member] | Class A Common Stock [Member] | Credit Agreement [Member]
Enlightenment Capital Credit Agreement [Abstract]
Number of shares held by chief executive officer (in shares) | shares							50,000
Term Loan [Member] | Enlightenment Capital Solutions Fund, II L.P. [Member]
Enlightenment Capital Credit Agreement [Abstract]
Senior term loan						$ 11,000,000
Maturity date							Jan. 25, 2022
Accrued interest rate						13.00%
Increase in interest rate						14.50%
Increase in interest rate in event of default						2.00%
Monthly accrued interest rate during continuance of an Alternate Interest Rate Event						11.50%
Number of days prior written notice							30 days
Principal amount						$ 11,000,000
Term Loan [Member] | Enlightenment Capital Solutions Fund, II L.P. [Member] | Minimum [Member]
Enlightenment Capital Credit Agreement [Abstract]
Monthly accrued interest rate						10.00%