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STOCK-BASED COMPENSTION PLANS - RSA & RSU Activity Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense $ 17,861 $ 6,522 $ 1,817
Restricted shares held for taxes $ 222    
Share based compensation arrangement by share based payment award equity instruments other than options, cancelled (in shares) 97,835    
Additional Paid-in Capital      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted shares held for taxes $ 222    
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation arrangement by share based payment award equity instruments other than options, granted (in shares) 0 35,000 22,616
Share based compensation arrangement by share based payment award equity instruments other than options, vested (in shares)   25,000  
Number of shares of restricted stock vest over monthly installments (in shares)   10,000  
Weighted-average estimated fair value per share of the restricted stock granted (USD per share)   $ 6.33 $ 1.36
Stock-based compensation expense $ 800 $ 1,100 $ 300
Restricted shares held for taxes (in shares) 17,605    
Restricted Stock | Additional Paid-in Capital      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted shares held for taxes $ 200    
Restricted stock units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation arrangement by share based payment award equity instruments other than options, granted (in shares) 4,224,623    
Weighted-average estimated fair value per share of the restricted stock granted (USD per share)   $ 5.34  
Stock-based compensation expense $ 3,300    
Restricted shares held for taxes (in shares) 2,941    
Award vesting period 4 years    
Restricted stock units | Additional Paid-in Capital      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted shares held for taxes $ 100