Consolidated Statements of Changes in Shareholders' Equity - USD ($)	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Total
Balance at Mar. 30, 2014	$ 94,200	$ 53,987,700	$ (50,084,600)	$ 110,830,800	$ 114,828,100
Balance (in shares) at Mar. 30, 2014	8,180,484
Increase (Decrease) in Stockholders' Equity
Proceeds from issuance of stock	$ 200	540,000			540,200
Proceeds from issuance of stock (in shares)	19,425
Treasury stock purchases			(6,223,300)		(6,223,300)
Treasury stock purchases (in shares)	(211,033)
Non-cash stock compensation expense	$ 1,700	1,159,600			1,161,300
Non-cash stock compensation expense (in shares)	170,716
Excess tax benefit from stock-based compensation		830,300			830,300
Cash dividends paid				(6,628,800)	(6,628,800)
Net income				8,634,300	8,634,300
Balance at Mar. 29, 2015	$ 96,100	56,517,600	(56,307,900)	112,836,300	113,142,100
Balance (in shares) at Mar. 29, 2015	8,159,592
Increase (Decrease) in Stockholders' Equity
Proceeds from issuance of stock	$ 300	487,000			487,300
Proceeds from issuance of stock (in shares)	25,067
Treasury stock purchases			(937,300)		(937,300)
Treasury stock purchases (in shares)	(40,623)
Non-cash stock compensation expense	$ 1,200	727,800			729,000
Non-cash stock compensation expense (in shares)	128,088
Excess tax benefit from stock-based compensation		381,400			381,400
Cash dividends paid				(6,615,700)	(6,615,700)
Net income				5,340,500	5,340,500
Balance at Mar. 27, 2016	$ 97,600	58,113,800	(57,245,200)	111,561,100	$ 112,527,300
Balance (in shares) at Mar. 27, 2016	8,272,124				8,272,124
Increase (Decrease) in Stockholders' Equity
Proceeds from issuance of stock	$ 400	458,200			$ 458,600
Proceeds from issuance of stock (in shares)	37,432
Treasury stock purchases			(192,400)		(192,400)
Treasury stock purchases (in shares)	(12,453)
Non-cash stock compensation expense	$ 400	434,000			434,400
Non-cash stock compensation expense (in shares)	40,566
Cash dividends paid				(6,656,700)	(6,656,700)
Net income				1,445,100	1,445,100
Balance at Mar. 26, 2017	$ 98,400	$ 59,006,000	$ (57,437,600)	$ 106,349,500	$ 108,016,300
Balance (in shares) at Mar. 26, 2017	8,337,669				8,337,669