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Fair Value Measurements (Tables)
12 Months Ended
Mar. 31, 2020
Fair Value Disclosures [Abstract]  
Schedule of fair value of financial liabilities are measured at fair value on a recurring basis
   March 31, 2020 
   Fair   Hierarchy Level 
   Value   Level 1   Level 2   Level 3 
Liabilities:                
Bifurcated embedded derivative on senior secured convertible debentures  $524   $-   $-   $524 
Bifurcated embedded derivative on unsecured convertible note payable  $141   $-   $-   $141 

 

   March 31, 2019 
   Fair   Hierarchy Level 
   Value   Level 1   Level 2   Level 3 
Liabilities:                
Bifurcated embedded derivative on senior secured convertible debentures  $586   $-   $-   $586 

 

Schedule of derivative instruments
   Amount 
Balance as of April 1, 2018  $- 
Additions - unsecured convertible note payable   263 
Total fair value adjustments reported in earnings   323 
Balance as of March 31, 2019   586 
Additions - unsecured convertible note payable   65 
Total fair value adjustments reported in earnings   14 
Balance as of March 31, 2020  $665
Schedule of fair value measurement option for financial assets or liabilities
   March 31, 2020 
   Carrying   Hierarchy Level 
   Value   Level 1   Level 2   Level 3 
Assets:                
Cash and cash equivalents  $5,702   $5,702   $-   $- 
Restricted cash   6,735    6,735    -    - 
Liabilities:                    
Note payable   331    -    -    331 
Senior secured convertible debentures, net   8,701    -    -    9,254 
Unsecured convertible notes payable related party, net   5,114    -    -    4,451 
Unsecured convertible note payable   1,539    -    -    1,338 

 

   March 31, 2019 
   Carrying   Hierarchy Level 
   Value   Level 1   Level 2   Level 3 
Assets:                
Cash and cash equivalents  $13,704   $13,704   $-   $- 
Restricted cash   235    235    -    - 
Liabilities:                    
Note payable   312    -    -    312 
Senior secured convertible debentures, net   11,809    -    -    13,737 
Unsecured convertible notes payable, net   4,741    -    -    8,844 

 

Schedule of fair value of each of the debentures and unsecured convertible

 

   Year Ended March 31, 
   2020   2019 
Senior secured convertible debentures, net (binomial lattice model):        
Expected volatility   101.4%   53.4%
Coupon rate   12.75%   12.75%
Dividend yield   0.00%   0.00%
Risk-free rate   0.2%   2.3%
Expected term (in years)   1.25    2.25 
           
Unsecured convertible notes payable related party, net (yield model with a Black-Scholes-Merton option pricing model):          
Expected volatility   101.6%   53.4%
Coupon rate   7.5%   7.5%
Dividend yield   0.00%   0.00%
Risk-free rate   0.18%   2.26%
Expected term (in years)   1.17    2.17 
           
Unsecured convertible note payable (yield model with a Black-Scholes-Merton option pricing model):          
Expected volatility   110.0%   - 
Coupon rate   8.0%   - 
Dividend yield   0.00%   - 
Risk-free rate   0.2%   - 
Expected term (in years)   1.85    -