SUBSEQUENT EVENTS (Details Textual) - USD ($)	1 Months Ended	2 Months Ended	12 Months Ended
	Jan. 17, 2019	Mar. 01, 2019	Dec. 31, 2018	Dec. 31, 2017	Mar. 11, 2019	Jan. 01, 2019
Subsequent Event [Line Items]
Stock Repurchased During Period, Value			$ 8,168,000	$ 4,958,000
Repurchase Of Common Stock Price Per Share			$ 2.26
Common Class D [Member]
Subsequent Event [Line Items]
Stock Repurchased During Period, Shares			3,989,822	2,408,198
Stock Repurchased During Period, Value			$ 4,000	$ 2,000
Common Stock Shares Authorized Value					$ 50,000,000
Common Class A [Member]
Subsequent Event [Line Items]
Stock Repurchased During Period, Shares			4,160
Stock Repurchased During Period, Value			$ 0	$ 0
9.25% Senior Subordinated Notes due 2020 [Member]
Subsequent Event [Line Items]
Debt Instrument, Redemption Period, Start Date	Feb. 15, 2019
Subsequent Event [Member]
Subsequent Event [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	100.00%
Subsequent Event [Member] | Common Class D [Member]
Subsequent Event [Line Items]
Repurchase Of Common Stock Value		$ 1,100,000
Repurchase Of Common Stock Shares		598,596
Repurchase Of Common Stock Price Per Share		$ 1.85
Additional Repurchase Of Common Stock Shares		277,485
Additional Repurchase Of Common Stock Value		$ 584,000
Additional Repurchase Of Common Stock Price Per Share		$ 2.10
Subsequent Event [Member] | Common Class A [Member]
Subsequent Event [Line Items]
Stock Repurchased During Period, Shares		9,282
Stock Repurchased During Period, Value		$ 21,000
Repurchase Of Common Stock Price Per Share		$ 2.25
Subsequent Event [Member] | Asset Backed Credit Facility [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Current Borrowing Capacity						$ 6,000,000