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Stock-Based Compensation - Stock Option Grants (Details) - USD ($)
9 Months Ended 12 Months Ended
May 15, 2021
Apr. 29, 2021
May 15, 2020
Feb. 08, 2021
Mar. 28, 2021
Mar. 29, 2020
Mar. 31, 2019
Stock-based compensation              
Exercise of stock options (in dollars)           $ 681,100  
Options Exercised (in shares)         0 48,125 0
Options Exercised, weighted average exercise price (in dollars per share)           $ 14.15  
Options Granted (in shares)         240,000 405,000  
Stock Options              
Stock-based compensation              
Unrecognized compensation costs (in dollars)         $ 800,000    
Unrecognized compensation costs, period for recognition         3 years    
Stock Options Vesting Based On Service              
Stock-based compensation              
Options Granted (in shares)       165,000      
Stock Options Vesting Based On Performance              
Stock-based compensation              
Options Granted (in shares)     65,000        
Subsequent Event              
Stock-based compensation              
Options Granted (in shares) 187,500 187,500          
Tranche one | Stock Options              
Stock-based compensation              
Vesting percentage         25.00%    
Vesting period         1 year    
Tranche one | Stock Options Vesting Based On Service              
Stock-based compensation              
Vesting percentage       25.00%      
Vesting period       1 year      
Tranche one | Stock Options Vesting Based On Performance              
Stock-based compensation              
Vesting percentage     25.00%        
Vesting period     1 year        
Tranche one | Subsequent Event | Stock Options              
Stock-based compensation              
Vesting percentage   25.00%          
Vesting period   1 year          
Tranche two | Stock Options              
Stock-based compensation              
Monthly percentage of vesting of share based compensation         2.78%    
Additional vesting period after the initial period         3 years    
Tranche two | Stock Options Vesting Based On Service              
Stock-based compensation              
Monthly percentage of vesting of share based compensation       2.78%      
Vesting period       3 years      
Tranche two | Stock Options Vesting Based On Performance              
Stock-based compensation              
Monthly percentage of vesting of share based compensation     2.78%        
Vesting period     3 years        
Tranche two | Subsequent Event | Stock Options              
Stock-based compensation              
Monthly percentage of vesting of share based compensation   2.78%          
Vesting period   3 years