Statements of Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 25, 2021	14,350,786
Balance at Dec. 25, 2021	$ 143,508	$ 39,281,810	$ (26,256,492)	$ (2,515)	$ 13,166,311
Share-based compensation expense	$ 0	124,471	0	0	$ 124,471
Employee options exercises (in shares)	72,700				72,700
Employee options exercises	$ 727	150,308	0	(3,108)	$ 147,927
Net income	0	0	419,436	0	419,436
Issuance of Common Stock	$ 0	(9,614)	0	0	(9,614)
Balance (in shares) at Apr. 02, 2022	14,423,486
Balance at Apr. 02, 2022	$ 144,235	39,546,975	(25,837,056)	(5,623)	13,848,531
Balance (in shares) at Dec. 31, 2022	14,460,486
Balance at Dec. 31, 2022	$ 144,605	39,726,851	(24,125,092)	(40,848)	15,705,516
Share-based compensation expense	$ 0	130,441	0	0	$ 130,441
Employee options exercises (in shares)	7,001				7,001
Employee options exercises	$ 70	10,215	0	(790)	$ 9,495
Net income	$ 0	0	459,201	0	459,201
Balance (in shares) at Apr. 01, 2023	14,467,487
Balance at Apr. 01, 2023	$ 144,675	$ 39,867,507	$ (23,665,891)	$ (41,638)	$ 16,304,653