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Fair Value Measurements (Tables)
9 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Schedule of fair values of certain financial instruments and the hierarchy level we used to estimate the fair values

    December 31, 2018  
    Carrying     Hierarchy Level  
    Value     Level 1     Level 2     Level 3  
Liabilities:                        
Note payable   $ 308     $ -     $ -     $ 308  
Senior secured convertible debentures, net     9,739       -       -       11,266  
Bifurcated embedded derivative on senior secured convertible debentures, net     30       -       -       200  
Unsecured convertible notes payable, net     4,546       -       -       8,549  

 

    March 31, 2018  
    Carrying     Hierarchy Level  
    Value     Level 1     Level 2     Level 3  
Liabilities:                        
Note payable   $ 294     $ -     $ -     $ 294  
Bank debt     3,500       -       3,500       -  
Unsecured convertible notes payable, net     4,916       -       -       4,916