SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Condensed Cash Flow Statements, Captions [Line Items]
Cash interest paid	$ 4,457	$ 6,495
Accrued dividends on preferred stock	89	89
Issuance of Second Lien Loans in connection with Convertible Notes exchange transaction	0	1,462
Class A common stock
Condensed Cash Flow Statements, Captions [Line Items]
Issuance of Class A common stock for payment of preferred stock dividends	178	178
Issuance of Class A common stock for settlement of an obligation to a vendor	$ 0	$ 867