Annual report pursuant to Section 13 and 15(d)

COMMON STOCK - Narrative (Details)

v3.22.1
COMMON STOCK - Narrative (Details) - USD ($)
12 Months Ended
Feb. 08, 2021
Feb. 01, 2021
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Jun. 16, 2020
Senior Secured Term Loan            
Share-based Compensation Arrangement by Share-based Payment Award            
Minimum registrable securities to request a S-1           40.00%
December 27, 2028            
Share-based Compensation Arrangement by Share-based Payment Award            
Warrants issued (in shares)     7,110,616 7,110,616    
Warrant exercise price (in dollars per share)     $ 1.33      
June 16, 2030            
Share-based Compensation Arrangement by Share-based Payment Award            
Warrants issued (in shares)     3,450,000      
Warrant exercise price (in dollars per share)     $ 3.00      
Restricted stock units            
Share-based Compensation Arrangement by Share-based Payment Award            
Vesting period     3 years      
Shares granted (in shares)     2,800,000 2,400,000 600,000  
Unrecognized compensation cost related to stock options granted     $ 17,100,000      
Weighted-average period for recognition (in years)     2 years      
Awards vested, fair value     $ 5,000,000 $ 2,100,000 $ 4,000,000  
Employee stock purchase plan            
Share-based Compensation Arrangement by Share-based Payment Award            
Additional shares authorized during period (in shares)     0 0    
Shares available for future equity grants (in shares)     688,000 1,077,000 1,397,000  
Common stock purchase price, percentage     85.00%      
Performance share units            
Share-based Compensation Arrangement by Share-based Payment Award            
Awards vested, fair value     $ 3,900,000 $ 2,900,000 $ 600,000  
Market (PSUs)            
Share-based Compensation Arrangement by Share-based Payment Award            
Shares granted (in shares)     600,000 900,000 1,500,000  
Unrecognized compensation cost related to stock options granted     $ 2,700,000      
Weighted-average period for recognition (in years)     1 year      
Market (PSUs) | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award            
Vesting period     1 year      
Market (PSUs) | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award            
Vesting period     3 years      
Performance PSUs            
Share-based Compensation Arrangement by Share-based Payment Award            
Shares granted (in shares)     0 500,000 300,000  
Unrecognized compensation cost related to stock options granted     $ 600,000      
Weighted-average period for recognition (in years)     1 year      
2012 Long-Term Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award            
Additional shares authorized during period (in shares)     5,900,000      
Shares authorized (in shares)     9,000,000      
Shares available for future equity grants (in shares)     4,200,000      
Plan term     7 years      
2012 Long-Term Incentive Plan | Employee            
Share-based Compensation Arrangement by Share-based Payment Award            
Vesting period     3 years      
2012 Long-Term Incentive Plan | Nonemployee director            
Share-based Compensation Arrangement by Share-based Payment Award            
Vesting period     1 year      
2012 Long-Term Incentive Plan | Stock options, PSUs, and Restricted Shares            
Share-based Compensation Arrangement by Share-based Payment Award            
Shares outstanding (in shares)     4,800,000      
2021 Inducement Plan | Restricted stock units            
Share-based Compensation Arrangement by Share-based Payment Award            
Plan term   7 years        
2021 Inducement Plan | Restricted stock units | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award            
Vesting period   2 years        
2021 Inducement Plan | Restricted stock units | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award            
Vesting period   4 years        
2021 Inducement Plan | Stock options            
Share-based Compensation Arrangement by Share-based Payment Award            
Plan term   7 years        
2021 Inducement Plan | Stock options | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award            
Vesting period   2 years        
2021 Inducement Plan | Stock options | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award            
Vesting period   4 years        
Secondary Offering            
Share-based Compensation Arrangement by Share-based Payment Award            
Number of shares issued in transaction (in shares) 15,109,489          
Common stock for gross proceeds $ 103,500,000          
Proceeds from issuance of stock, net $ 96,800,000