Income Taxes - Statutory Federal Income Tax Rate (Details) - CTRS - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amount
Federal income tax benefit (expenses)	$ 346	$ 125	$ (65)
State income tax benefit (expense), net of federal income tax effect	66	24	(12)
Deferred tax adjustment	0	21	127
Capital loss (gain)	(10)	404	0
Valuation allowance	(346)	(586)	(45)
Other	(56)	12	(5)
Benefit applicable to net income (loss)	$ 0	$ 0	$ 0
Rate
Federal income tax benefit (expenses)	21.00%	21.00%	21.00%
State income tax benefit (expense), net of federal income tax effect	4.00%	4.00%	4.00%
Deferred tax adjustment	0.00%	4.00%	(41.00%)
Capital loss (gain)	0.00%	68.00%	0.00%
Valuation allowance	(26.00%)	(98.00%)	15.00%
Other	1.00%	1.00%	1.00%
Benefit applicable to net income (loss)	0.00%	0.00%	0.00%

Effective Income Tax Rate Reconciliation Deferred Tax Adjustments

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