Net Assets in Liquidation (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 01, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Total Equity, December 1, 2021 (Going Concern Basis)		$ 124,569	$ 76,281	$ 95,826	$ 107,852
Liquidation [Member]
Total Equity, December 1, 2021 (Going Concern Basis)		124,569
Write-off of assets not recoverable in cash		(1,463)
Accrual for future expenditures		(5,632)
Net Assets in Liquidation, December 1, 2021 (Liquidation Basis)	$ 496	$ 117,474