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Related Party - Narrative (Details) $ / shares in Units, $ in Thousands					12 Months Ended
	Feb. 09, 2021 USD ($) $ / shares shares	Jan. 04, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) Director	Nov. 16, 2020 USD ($) $ / shares	Jun. 30, 2021 USD ($)	Nov. 15, 2020 USD ($)
Related Party Transaction [Line Items]
Shares issued in connection with a rights offering					$ 59,959
Plan of Reorganization \| Rights Offering
Related Party Transaction [Line Items]
Proceeds from rights offering	$ 40,000
Osmium Partners LLC
Related Party Transaction [Line Items]
Number of additional shares beneficially own \| shares	2,026,840
Osmium Partners LLC \| Backstop Commitment Agreement \| Backstop Party \| Common Stock
Related Party Transaction [Line Items]
Rights offering proposed to conduct, purchase price per share \| $ / shares	$ 1.10
Shares issued in connection with a rights offering		$ 20,200
Osmium Partners LLC \| Backstop Commitment Agreement \| Rights Offering
Related Party Transaction [Line Items]
Rights offering proposed to conduct, purchase price per share \| $ / shares				$ 1.10
Shares issued in connection with a rights offering		40,000		$ 40,000
Proceeds from rights offering	$ 40,000
Osmium Partners LLC \| Backstop Commitment Agreement \| Rights Offering \| Common Stock
Related Party Transaction [Line Items]
Shares issued in connection with a rights offering		19,800
Osmium Partners LLC \| Backstop Commitment Agreement \| Rights Offering \| Eligible Holders \| Maximum \| Common Stock
Related Party Transaction [Line Items]
Shares issued in connection with a rights offering		$ 24,000		$ 24,000
Osmium Partners LLC \| Backstop Commitment Agreement \| Rights Offering \| Backstop Party \| Common Stock
Related Party Transaction [Line Items]
Rights offering proposed to conduct, purchase price per share \| $ / shares		$ 1.10		$ 1.10
Osmium Partners LLC \| Backstop Commitment Agreement \| Rights Offering \| Backstop Party \| Maximum \| Common Stock
Related Party Transaction [Line Items]
Shares issued in connection with a rights offering (shares) \| shares		16,000,000
Tensile Capital Partners Master Fund LP
Related Party Transaction [Line Items]
Number of shares deemed to beneficially own \| shares	30,158,593
Tensile Capital Partners Master Fund LP \| Commitment Letter
Related Party Transaction [Line Items]
Agreed subordinated debt financing						$ 25,000
Alter Domus (US) LLC and Tensile Capital Partners Master Fund LP \| Term Loan Credit Agreement
Related Party Transaction [Line Items]
Due to related party			$ 25,000
Osmium Partners and Larkspur SPV \| Plan of Reorganization and Backstop Commitment Agreement
Related Party Transaction [Line Items]
Number of directors entitled to appoint \| Director			3
Number of additional directors entitled to appoint \| Director			1
Larkspur SPV
Related Party Transaction [Line Items]
Percentage of outstanding shares beneficially owned	31.40%
Larkspur SPV \| Backstop Commitment Agreement \| Rights Offering \| Common Stock
Related Party Transaction [Line Items]
Shares issued in connection with a rights offering (shares) \| shares	18,340,411
Proceeds from rights offering	$ 20,200
Larkspur SPV \| Plan of Reorganization and Backstop Commitment Agreement
Related Party Transaction [Line Items]
Warrant to purchase additional shares \| shares	10,000,000
Exercise price of warrant \| $ / shares	$ 1.65
Larkspur SPV \| Plan of Reorganization and Backstop Commitment Agreement \| Rights Offering
Related Party Transaction [Line Items]
Additional shares issued \| shares	1,818,182