Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 14,505,937	$ 5,045,255
Other comprehensive income/(loss)
Change in foreign currency translation	(1,163,136)	1,221,888
Change in fair value of interest rate swap, net of tax benefit of: $26,969 in 2018 and $7,310 in 2017	124,687	41,757
Change in pension and other postretirement benefit costs, net of income taxes (expense)/benefit of: $578,090 in 2018 and $62,632 in 2017	(203,353)	554,243
Total other comprehensive income/(loss)	(1,241,802)	1,817,888
Comprehensive income/(loss)	$ 13,264,135	$ 6,863,143