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Fair Value Measurements (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Mar. 31, 2018
Level 1 [Member]    
Liabilities:    
Bifurcated embedded derivative on senior secured convertible debentures  
Level 2 [Member]    
Liabilities:    
Bifurcated embedded derivative on senior secured convertible debentures  
Level 3 [Member]    
Liabilities:    
Bifurcated embedded derivative on senior secured convertible debentures 586  
Fair Value [Member]    
Liabilities:    
Bifurcated embedded derivative on senior secured convertible debentures $ 586