Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
Income tax provision (benefit)	$ 622	$ (55)	$ 478	$ 12	$ 154	$ 206	$ 36	$ 313	$ 1,057	$ 709	$ 3,487
Net capital loss carry-forward	6,775				4,271				6,775	4,271
Net operating loss available for carry-back and carry-forward	7,295				6,503				7,295	6,503
Allowance	(15,382)				(12,087)				(15,382)	(12,087)
Net deferred tax liability	85				85				85	85
Operating Loss Carryforwards
Income Tax Contingency [Line Items]
Allowance	(6,900)				(6,100)				(6,900)	(6,100)
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Net operating loss available for carry-back and carry-forward	6,000				5,500				6,000	5,500
Domestic Tax Authority
Income Tax Contingency [Line Items]
Net deferred tax liability	85				85				85	85
Taxable REIT Subsidiary
Income Tax Contingency [Line Items]
Net capital loss carry-forward	8,500				6,000				8,500	6,000
Taxable REIT Subsidiary | State and Local Jurisdiction
Income Tax Contingency [Line Items]
Net operating loss available for carry-back and carry-forward	$ 1,300				$ 993				$ 1,300	$ 993