Consolidated Statements of Changes in Shareholders' Equity - USD ($)	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Total
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
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
Increase (Decrease) in Stockholders' Equity
Proceeds from issuance of stock	$ 400	604,000			$ 604,400
Proceeds from issuance of stock (in shares)	44,458
Treasury stock purchases			(65,400)		(65,400)
Treasury stock purchases (in shares)	(4,443)
Non-cash stock compensation expense	$ 200	1,001,900			1,002,100
Non-cash stock compensation expense (in shares)	18,853
Cash dividends paid				(6,701,200)	(6,701,200)
Net income				5,195,400	5,195,400
Balance at Apr. 01, 2018	$ 99,000	$ 60,611,900	$ (57,503,000)	$ 104,843,700	$ 108,051,600
Balance (in shares) at Apr. 01, 2018	8,396,537				8,396,537