SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	1 Months Ended
	Aug. 14, 2017	Aug. 10, 2017	Aug. 09, 2017	Jul. 31, 2017	Jul. 14, 2017	Jul. 10, 2017	Jul. 31, 2016	Jun. 30, 2016	Apr. 30, 2015	Apr. 29, 2015
Subsequent Event [Line Items]
Purchase Contract, Number of Shares Purchased									1,179,138
Convertible Notes | Convertible Debt
Subsequent Event [Line Items]
Debt interest rate, stated rate										5.50%
Credit Agreement Amendment Number 4 | Revolving Credit Facility
Subsequent Event [Line Items]
Maximum borrowing capacity							$ 19,800	$ 22,000
Subsequent Event
Subsequent Event [Line Items]
Purchase Contract, Number of Shares Settled				250,000	75,000
Subsequent Event | Convertible Notes | Convertible Debt
Subsequent Event [Line Items]
Percent of total outstanding						99.00%
Long-term debt						$ 50,000
Debt interest rate, stated rate						5.50%
Subsequent Event | Second Secured Lien Notes | Secured Debt
Subsequent Event [Line Items]
Converted instrument, amount	$ 1,462
Subsequent Event | Credit Agreement Amendment Number 4 | Revolving Credit Facility
Subsequent Event [Line Items]
Maximum borrowing capacity		$ 17,100	$ 19,800
Subsequent Event | Class A common stock
Subsequent Event [Line Items]
Converted instrument, shares issued (in shares)	1,215,326
Subsequent Event | Class A common stock | Exchange Agreement | Convertible Debt
Subsequent Event [Line Items]
Debt conversion original debt amount	$ 3,650