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CHANGES IN STOCKHOLDERS' EQUITY: (Details) - USD ($)
12 Months Ended
Mar. 30, 2018
Mar. 31, 2017
Equity [Abstract]    
Increase Decrease in Stockholder's equity $ 2,017,672  
Net income 2,593,539 $ 1,473,976
Retained Earnings Accumulated 14,304,608 $ 12,286,936
Dividend paid $ 575,867