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CHANGES IN SHAREHOLDERS' EQUITY (Details) - USD ($)
3 Months Ended 9 Months Ended
Dec. 29, 2017
Dec. 23, 2016
Dec. 29, 2017
Dec. 23, 2016
Mar. 31, 2017
Equity [Abstract]          
Net income $ 477,706 $ 322,778 $ 1,370,373 $ 1,197,025  
Special cash dividend payable $ 0.25   $ 0.25    
Dividend payable record date     Jun. 06, 2017    
Payment of dividend     $ 575,867  
Retained earnings $ 13,081,440   $ 13,081,440   $ 12,286,936