INCOME TAXES: (Provision For Income Taxes) (Details) - USD ($)	12 Months Ended
	Mar. 30, 2018	Mar. 31, 2017
Current:
Federal	$ 449,123	$ 532,892
State and local	222,982	429,785
Total current tax provision	672,105	962,677
Deferred:
Federal	561,920	262,469
State and local	556,453	81,864
Total deferred tax benefit	1,118,373	344,333
Total provision (benefit)	$ 1,790,478	$ 1,307,010