Income Taxes - Tax Effect of Significant Temporary Differences (Details) - CTRS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Income Taxes [Line Items]
Income from unconsolidated joint ventures	$ 5	$ 27
Federal and state tax net operating loss carryforwards	1,636	1,163
Federal and state tax capital loss carryforwards	179	570
Gross deferred tax asset	1,820	1,760
Valuation allowance	(1,820)	(1,760)
Net deferred tax asset after valuation allowance	0	0
Net deferred tax asset	$ 1,800	$ 1,800

Deferred tax assets operating loss carryforwards federal and state.

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[Line Items] for Income Taxes [Table]

+ References

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from equity method investments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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-Publisher FASB
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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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