Income Taxes - Deferred Tax Assets and Liabilities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) subsidiary	Dec. 31, 2018 USD ($)
Components of Deferred Tax Assets and Liabilities [Line Items]
Annual distribution requirement to shareholders	90.00%
Number of wholly-owned subsidiaries jointly elected to be treated as a TRS | subsidiary	1
Deferred tax assets:
Basis difference in properties	$ 2	$ 2
Capital loss carryforward	3,939	3,939
Net operating loss carryforward	6,174	6,170
Other	467	467
Gross deferred tax assets	10,582	10,578
Less: valuation allowance	(10,582)	(10,578)
Total deferred tax assets	0	0
Deferred tax liabilities:
Other	0	0
Net deferred tax assets	0	$ 0
Federal taxing authority
Components of Deferred Tax Assets and Liabilities [Line Items]
Capital loss carryforward	18,757
Net operating loss carryforward	$ 29,399