Other Non-Current Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Nov. 03, 2020
Other Non Current Liabilities [Abstract]
Other non-current liabilities	$ 1,945	$ 1,360
Depreciation expense related to ARO	24	24
Asset Retirement Obligation [Roll Forward]
Balance at beginning of period	1,360	1,216
Additions	0	0
Accretion	165	144
Balance at ending of period	$ 1,525	$ 1,360
Senior Secured Notes Due 2025 [Member]
Other Non Current Liabilities [Abstract]
Interest rate	12.50%		12.50%
Put Option [Member] | Senior Secured Notes Due 2025 [Member]
Other Non Current Liabilities [Abstract]
Fair value of put option	$ 420		$ 535