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Senior Secured Convertible Debentures (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Mar. 31, 2019
Senior Secured Convertible Debentures [Abstract]    
Senior Secured Convertible Debentures $ 10,118 $ 13,101
Accrued interest 101 142
Fair Value of Embedded Derivatives 524 586
Less: Discount (1,518) (1,434)
Net 9,225 12,395
Less: Senior Secured Convertible Debentures, current 2,720 2,111
Senior Secured Convertible Debentures, long-term $ 6,505 $ 10,284