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Stock Ownership (Narrative) (Details) - $ / shares
12 Months Ended
Mar. 27, 2021
Mar. 28, 2020
Stock Ownership [Abstract]    
Class C convertible preferred stock, conversion value $ 0.064 $ 0.064
Distribution amount per share of preferred stock on liquidation of company $ 1.50  
Minimum percentage of preferred stock holders approval for authorization of action 60.00%