CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)
Net income	$ 3,061,959	$ 4,858,579	$ 5,068,480	$ 11,925,632
Other comprehensive (loss) income:
Change in foreign currency translation	(87,572)	(1,387,274)	(182,029)	(2,358,170)
Change in fair value of interest rate swap, net of tax cost of: 2023 - $0 and $(274,957) respectively; 2022 - $163,533 and $590,827 respectively	0	517,855	(1,449,754)	1,870,954
Change in pension and postretirement benefit costs, net of taxes of: 2023 - $74,360 and $223,079 respectively; 2022 - $92,235 and $276,705 respectively	252,668	313,408	758,006	940,225
Total other comprehensive income (loss)	165,096	(556,011)	(873,777)	453,009
Comprehensive income	$ 3,227,055	$ 4,302,568	$ 4,194,703	$ 12,378,641