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DEBT - Convertible Promissory Notes Narrative (Details)
1 Months Ended 12 Months Ended
Jun. 01, 2021
USD ($)
shares
May 01, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
debtClosing
Mar. 31, 2022
USD ($)
shares
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Jun. 18, 2020
USD ($)
Dec. 19, 2019
USD ($)
Debt Instrument [Line Items]                  
Proceeds from convertible notes         $ 0 $ 75,750,000 $ 5,367,000    
Total long-term debt         76,190,000 115,729,000      
Loss on extinguishment of debt         $ 2,024,000 0 0    
Common Stock                  
Debt Instrument [Line Items]                  
Conversion of preferred shares (in shares) | shares 1,135,713       1,135,713        
Debt instrument, convertible, value of equity instruments $ 12,800,000                
Convertible Debt | Convertible Promissory Notes - 2019                  
Debt Instrument [Line Items]                  
Debt instrument, face amount (up to)                 $ 10,000,000.0
Proceeds from convertible notes       $ 3,900,000          
Number of debt closings | debtClosing       2          
Debt interest rate                 7.00%
Convertible Debt | Convertible Promissory Notes - 2020                  
Debt Instrument [Line Items]                  
Debt instrument, face amount (up to)     $ 10,000,000.0       $ 10,000,000.0 $ 800,000  
Proceeds from convertible notes   $ 1,000,000.0 $ 1,500,000            
Convertible Debt | Convertible Promissory Notes - 2020, Super Pro Rata Notes                  
Debt Instrument [Line Items]                  
Debt interest rate     10.00%       10.00%    
Convertible Debt | Convertible Promissory Notes - 2020, Pro Rata Notes                  
Debt Instrument [Line Items]                  
Debt interest rate     8.00%       8.00%    
Convertible Debt | Convertible promissory notes                  
Debt Instrument [Line Items]                  
Total long-term debt           $ 7,200,000      
Loss on extinguishment of debt 2,000,000.0                
Equity component of convertible debt $ 500,000