Investment in Investees (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Dividend received from investee					$ 780	$ 0
Carrying Value	$ 2,827				2,827		$ 5,230
Equity in net loss of investees	$ (339)			$ (897)	$ (623)	$ 1,343
Corporate Segment [Member]
Schedule of Equity Method Investments [Line Items]
Equity Percentage	22.90%	22.90%		31.20%	22.90%	31.20%
Carrying Value	$ 1,738	$ 2,389		$ 3,816	$ 1,738	$ 3,816
Carrying Value		$ 2,827		$ 5,230		$ 5,230
Subsidiary or Equity Method Investee, Cumulative Number of Shares Issued for All Transactions					6,799,499
Investment Owned, Balance, Shares		1,813,889
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity		$ 1,300
Management [Member]
Schedule of Equity Method Investments [Line Items]
Sale of Stock, Consideration Received on Transaction	$ 1,000	$ 300	$ 300