CHANGES IN STOCKHOLDERS' EQUITY: (Details) - USD ($)	12 Months Ended
	Mar. 30, 2018	Mar. 31, 2017	Mar. 25, 2016
Increase Decrease in Stockholder's equity	$ 2,017,672
Net income	2,565,559	$ 1,473,976
Recognition of stock option compensation expense	27,980
Total stockholders' equity	17,072,216	15,054,544	$ 13,580,568
Dividend paid	575,867
Capital in Excess of Par Value [Member]
Net income
Recognition of stock option compensation expense	27,980
Total stockholders' equity	3,767,608	$ 3,739,628	$ 2,744,573
Dividend paid