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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($)
$ in Thousands
 6 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Condensed Cash Flow Statements, Captions [Line Items]    
Cash interest paid $ 6,495 $ 8,321
Accrued dividends on preferred stock 89 89
Issuance of Class A common stock in connection with Second Secured Lien Notes 0 365
Proceeds from issuance of unsecured debt 1,462 0
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
Class A common stock | Second Secured Lien Notes    
Condensed Cash Flow Statements, Captions [Line Items]    
Issuance of warrants in connection with Second Secured Lien Notes 0 107
Class A common stock | Convertible Notes    
Condensed Cash Flow Statements, Captions [Line Items]    
Accrued issuance of Class A common stock $ 0 $ 341