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Senior Secured Convertible Debentures (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Mar. 31, 2019
Senior Secured Convertible Debentures [Abstract]    
Senior Secured Convertible Debentures $ 1,112 $ 13,101
Accrued interest 142
Fair Value of Embedded Derivatives 397 586
Less: Discount (1,087) (1,434)
Net 10,422 12,395
Less: Senior Secured Convertible Debentures, current 3,047 2,111
Senior Secured Convertible Debentures, long-term $ 7,375 $ 10,284