BALANCE SHEETS (Parenthetical) - USD ($)	Jun. 29, 2018	Mar. 30, 2018
Statement of Financial Position [Abstract]
Allowances for doubtful accounts	$ 0	$ 11,562
Accumulated depreciation and amortization	$ 9,518,961	$ 9,377,361
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	2,323,468	2,303,468
Common stock, shares outstanding	2,323,468	2,303,468