Investments in Unconsolidated Affiliates (Details) - USD ($)	1 Months Ended			3 Months Ended			12 Months Ended
	Feb. 28, 2017	Apr. 30, 2016	Jan. 31, 2016	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Recognized net loss from investment							$ 0	$ 1,430,000	$ 0
Impairment of investments in unconsolidated affiliates							2,500,000	0	0
Losses from equity investment							0	468,000	0
Loss on deconsolidation of subsidiary (Note 3)							3,505,000	0	0
Proceeds from sales of AREC assets							$ 2,775,000	$ 0	$ 0
AREC [Member]
Schedule of Equity Method Investments [Line Items]
Loss on deconsolidation of subsidiary (Note 3)					$ 1,600,000
DIP amount outstanding					$ 400,000
AREC [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Schedule of Equity Method Investments [Line Items]
Loss on disposal				$ 1,900,000
Bencap LLC [Member]
Schedule of Equity Method Investments [Line Items]
Maximum borrowing amount			$ 1,500,000.0
Income tax benefit						$ 800,000
Percentage of equity method investment							0.00%
VestaCare, Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Voting interest		3.00%
Impairment of investments in unconsolidated affiliates				$ 2,500,000
Percentage of equity method investment		15.00%					15.00%
Bencap LLC [Member]
Schedule of Equity Method Investments [Line Items]
Voting interest			30.00%
Cash payment for acquisition			$ 2,200,000
Recognized net loss from investment						1,400,000
Impairment of investments in unconsolidated affiliates						1,700,000
Losses from equity investment						$ 500,000
Additional funding request	$ 500,000
VestaCare, Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Cash payment for acquisition		$ 2,500,000