Earnings Per Share (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Mar. 29, 2020	Mar. 31, 2019	Apr. 01, 2018
Earnings per share - Basic
Net earnings	$ (14,076,700)	$ (5,021,400)	$ 22,000	$ (2,492,800)	$ 492,000	$ 2,704,600	$ 1,190,800	$ 1,158,400	$ (21,568,900)	$ 5,545,800	$ 5,195,400
Weighted average common shares outstanding - Basic (in shares)									8,526,965	8,436,796	8,370,742
Basic (loss) earnings per share (in dollars per share)									$ (2.53)	$ 0.66	$ 0.62
Earnings per share - Diluted
Net earnings	$ (14,076,700)	$ (5,021,400)	$ 22,000	$ (2,492,800)	$ 492,000	$ 2,704,600	$ 1,190,800	$ 1,158,400	$ (21,568,900)	$ 5,545,800	$ 5,195,400
Weighted average common shares outstanding - Basic (in shares)									8,526,965	8,436,796	8,370,742
Effect of dilutive options (in shares)										130,163	100,263
Diluted weighted-average common shares outstanding (in shares)									8,526,965	8,566,959	8,471,005
Diluted (loss) earnings per share (in dollars per share)	$ (1.65)	$ (0.59)		$ (0.29)	$ 0.06	$ 0.32	$ 0.14	$ 0.13	$ (2.53)	$ 0.65	$ 0.61
Anti-dilutive equity awards (in shares)									852,000	94,000	40,000
Options outstanding (in shares)	862,000								862,000
Stock Options
Earnings per share - Diluted
Anti-dilutive equity awards (in shares)									852,000	94,000	40,000
Options outstanding (in shares)	862,000				591,500				862,000	591,500	540,000
Performance Stock Units
Earnings per share - Diluted
Anti-dilutive equity awards (in shares)									0	0	0
RSUs
Earnings per share - Diluted
Anti-dilutive equity awards (in shares)									0	0	0