Consolidated Statements of Changes in Shareholders' Equity - USD ($)	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Total
Balance at Mar. 28, 2021	$ 104,200	$ 67,227,700	$ (62,800)	$ 9,481,100	$ 76,750,200
Balance (in shares) at Mar. 28, 2021	8,833,833
Increase (Decrease) in Stockholders' Equity
Issuance of common stock for 401k match	$ 100	102,700			102,800
Issuance of common stock for 401k match (in shares)	13,782
Treasury stock purchases			(28,900)		(28,900)
Treasury stock purchases (in shares)	(3,960)
Non-cash stock compensation expense	$ 500	254,400			254,900
Non-cash stock compensation expense (in shares)	39,182
Exercise of stock options (in dollars)		10,900	(13,300)		(2,400)
Exercise of stock options (in shares)	1,754
Net income (loss)				(1,717,300)	(1,717,300)
Balance at Jun. 27, 2021	$ 104,800	67,595,700	(105,000)	7,763,800	75,359,300
Balance (in shares) at Jun. 27, 2021	8,884,591
Balance at Mar. 27, 2022	$ 105,900	69,166,100	(129,200)	6,780,300	$ 75,923,100
Balance (in shares) at Mar. 27, 2022	8,994,249				8,994,249
Increase (Decrease) in Stockholders' Equity
Issuance of common stock for 401k match	$ 200	94,000			$ 94,200
Issuance of common stock for 401k match (in shares)	15,941
Treasury stock purchases			(137,100)		(137,100)
Treasury stock purchases (in shares)	(23,623)
Non-cash stock compensation expense	$ 1,000	222,800			223,800
Non-cash stock compensation expense (in shares)	146,229
Net income (loss)				(275,100)	(275,100)
Balance at Jun. 26, 2022	$ 107,100	$ 69,482,900	$ (266,300)	$ 6,505,200	$ 75,828,900
Balance (in shares) at Jun. 26, 2022	9,132,796				9,132,796