Earnings Per Share (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 25, 2016	Sep. 27, 2015	Sep. 25, 2016	Sep. 27, 2015
Participating securities, Distributed and undistributed earnings
Participating securities (in shares)			0	32,130
Earnings per share - Basic
Net earnings	$ 994,200	$ 2,748,300	$ 1,074,700	$ 4,443,600
Less: Distributed and undistributed earnings allocated to nonvested stock		(7,000)		(12,000)
Earnings available to common shareholders – Basic		$ 2,741,000		$ 4,432,000
Weighted average common shares outstanding - Basic (in shares)	8,310,300	8,238,065	8,300,000	8,218,905
Basic earnings per share (in dollars per share)	$ 0.12	$ 0.33	$ 0.13	$ 0.54
Earnings per share - Diluted
Net earnings		$ 2,748,000		$ 4,444,000
Less: Distributed and undistributed earnings allocated to nonvested stock		(7,000)	$ 0	(8,000)
Earnings available to common shareholders – Diluted		$ 2,741,000		$ 4,436,000
Weighted average common shares outstanding - Basic (in shares)	8,310,300	8,238,065	8,300,000	8,218,905
Effect of dilutive options (in shares)	13,900	32,130	20,900	40,573
Diluted weighted-average common shares outstanding (in shares)	8,324,200	8,270,195	8,320,900	8,259,478
Diluted earnings per share (in dollars per share)	$ 0.12	$ 0.33	$ 0.13	$ 0.54
Anti-dilutive equity awards (in shares)		80,000		80,000
Stock Options
Earnings per share - Diluted
Anti-dilutive equity awards (in shares)			330,000	80,000
Performance Stock Units
Earnings per share - Diluted
Anti-dilutive equity awards (in shares)			0	0
RSU awards
Earnings per share - Diluted
Anti-dilutive equity awards (in shares)			0	0