Consolidated Statements of Income - USD ($)	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Consolidated Statements of Income
Net sales	$ 272,751,967	$ 258,857,380
Cost of products sold	(205,484,807)	(197,085,074)
Gross margin	67,267,160	61,772,306
Product development expense	(4,888,496)	(5,592,355)
Selling and administrative expenses	(42,229,660)	(39,146,727)
Operating profit	20,149,004	17,033,224
Interest expense	(2,721,318)	(2,805,278)
Other (expense) income	353,366	855,151
Income from continuing operations before income taxes	17,074,320	15,083,097
Income taxes	(3,858,796)	(3,302,746)
Net income from continuing operations	13,215,524	11,780,351
Discontinued Operations (see note 2)
Loss from operations of discontinued units	2,821,898	4,091,155
Loss on classification as held for sale	(23,087,775)	0
Income tax benefit	4,164,932	895,806
Net loss on discontinued operations	(21,744,741)	(3,195,349)
Net (loss) income	$ (8,529,217)	$ 8,585,002
Earnings per share from continuing operations:
Earnings per share from continuing operations: Basic	$ 2.13	$ 1.89
Earnings per share from continuing operations: Diluted	2.13	1.88
Loss per share from discontinued operations:
Loss per share from discontinued operations: Basic	(3.50)	(0.51)
Loss per share from discontinued operations: Diluted	(3.50)	(0.51)
Total (loss) earnings per share:
Total (loss) earnings per share: Basic	(1.37)	1.38
Total (loss) earnings per share: Diluted	(1.37)	1.37
Cash dividends per share:	$ 0.44	$ 0.44