INCOME TAXES: (Provision For Income Taxes) (Details) - USD ($)	12 Months Ended
	Mar. 29, 2019	Mar. 30, 2018
Current:
Federal	$ 828,728	$ 449,123
State and local	1,166,106	222,982
Total current tax provision	1,994,834	672,105
Deferred:
Federal	408,174	561,920
State and local	222,217	556,453
Total deferred tax expense	630,391	1,118,373
Total provision	$ 2,625,225	$ 1,790,478