Discontinued Operations - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Depreciation and amortization expenses, discontinued operations	$ 301,000
Amortization of Deferred financing costs, discontinued operations	17,000
Capital expenditure, discontinued operations	$ 201,000
Consolidated Properties [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Assets related to discontinued operations		$ 0	$ 0
Liabilities related to discontinued operations		$ 0	$ 0