Consolidated Statements of Shareholders' Equity - USD ($)	Total	Common Stock	Treasury Stock	Retained Earnings	Accumulated other comprehensive Income (Loss)
Balance, shares at Dec. 28, 2019		8,975,434	2,734,729
Balance, amount at Dec. 28, 2019	$ 105,437,257	$ 30,651,815	$ (20,169,098)	$ 120,189,111	$ (25,234,571)
Net income	5,405,522			5,405,522
Cash dividends declared, $0.44 per share	2,754,502			2,754,502
Currency translation adjustment	2,991,816				2,991,816
Change in fair value of interest rate swap	(1,558,610)				(1,558,610)
Change in pension and other postretirement benefit costs, net of tax	(5,695,386)				(5,695,386)
Treasury Stock Purchase, shares			(15,000)
Treasury Stock Purchase, amount	(368,865)		$ (368,865)
Issuance of SARS	376,083	$ 376,083
Issuance of Common Stock for directors' fees, shares		21,191
Issuance of Common Stock for directors' fees, amount	473,143	$ 473,143
Balance, shares at Jan. 02, 2021		8,996,625	2,749,729
Balance, amount at Jan. 02, 2021	104,306,458	$ 31,501,041	$ (20,537,963)	122,840,131	(29,496,751)
Net income	9,349,171			9,349,171
Cash dividends declared, $0.44 per share	2,766,677			2,766,677
Currency translation adjustment	(135,418)				(135,418)
Change in fair value of interest rate swap	1,035,604				1,035,604
Change in pension and other postretirement benefit costs, net of tax	2,063,809				2,063,809
Treasury Stock Purchase, shares			(14,596)
Treasury Stock Purchase, amount	(369,650)		$ (369,650)
Issuance of SARS	418,000	$ 418,000
Issuance of Common Stock for directors' fees, shares		18,546
Issuance of Common Stock for directors' fees, amount	504,017	$ 504,017
Stock Options Exercised, shares		14,681
Stock Options Exercised, amount	196,950	$ 196,950
Balance, shares at Jan. 01, 2022		9,029,852	2,764,325
Balance, amount at Jan. 01, 2022	$ 114,602,264	$ 32,620,008	$ (20,907,613)	$ 129,422,625	$ (26,532,756)