Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Balance (in shares) at Dec. 28, 2019	13,427,492
Balance at Dec. 28, 2019	$ 134,275	$ 36,094,201	$ (30,380,433)	$ (517,053)	$ 5,330,990
Share-based compensation expense		117,842			117,842
Issuance of Common Stock (in shares)	500
Issuance of Common Stock	$ 5	763			768
Employee option exercises (in shares)	318,250
Employee option exercises	$ 3,182	476,080		(479,270)
Net income (loss)			908,064		908,064
Balance (in shares) at Dec. 26, 2020	13,746,242
Balance at Dec. 26, 2020	$ 137,462	36,688,894	(29,472,369)	(996,323)	6,357,664
Share-based compensation expense		174,124			174,124
Issuance of Common Stock (in shares)	528,804
Issuance of Common Stock	$ 5,289	3,402,128			3,407,417
Employee option exercises (in shares)	630,400
Employee option exercises	$ 6,304	1,235,370		(1,230,445)	11,229
Net income (loss)			3,215,877		3,215,877
Treasury Shares Retired (in shares)	(554,660)
Treasury Shares Retired	$ (5,547)	(2,218,706)		2,224,253
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