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Consolidated Balance Sheets (Parenthetical) - $ / shares
Mar. 28, 2020
Mar. 30, 2019
Common stock, shares outstanding 17,970,881 17,960,881
Preferred stock, par value $ 0 $ 0
Preferred stock, shares issued 0 0
Class A Common Stock [Member]    
Common stock, par value $ 0 $ 0
Common stock, shares issued 10,252,911  
Common stock, shares outstanding 10,252,911 10,242,911
Class B Common Stock [Member]    
Common stock, par value $ 0 $ 0
Common stock, shares issued 7,717,970  
Common stock, shares outstanding 7,717,970 7,717,970