Current Liabilities and Debt Obligations, Enlightenment Capital Credit Agreement (Details)						3 Months Ended
	Mar. 26, 2020 USD ($) Extension	Jul. 19, 2019 USD ($)	Jul. 18, 2019 USD ($)	Jan. 25, 2017 USD ($) $ / shares shares	Mar. 31, 2015	Mar. 31, 2020 USD ($) shares	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Apr. 18, 2017 USD ($)
Accounts Payable and Other Accrued Payables [Abstract]
Trade account payables						$ 13,700,000		$ 13,500,000
Accrued trade payables						1,500,000		1,500,000
Enlightenment Capital Credit Agreement [Abstract]
Senior term loan, net						$ 0		16,335,000
Credit Agreement [Member]
Enlightenment Capital Credit Agreement [Abstract]
Increase in interest rate						1.00%
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						(730,000)		(865,000)
Senior term loan, net						16,470,000		$ 16,335,000
Interest expense						800,000	$ 400,000
Exit fee						$ 825,000
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
Porter [Member]
Enlightenment Capital Credit Agreement [Abstract]
Maturity date					Jul. 01, 2017	Jul. 25, 2022
Aggregate redemption price									$ 2,100,000
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				1,135,284.333
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				$ 1.321
Warrants expiration date						Jan. 25, 2027
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
Accrual rate				13.00%
Increase in interest rate				14.50%
Increase in interest rate in event of default				2.00%
Monthly accrued interest rate				10.00%
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