Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 5,727,043	$ 7,661,476	$ 6,901,921
Other comprehensive income/(loss) -
Change in foreign currency translation	(2,009,277)	(1,128,327)	(656,972)
Change in pension and postretirement benefit costs, net of income taxes (expense)/benefit of $1,899,285 in 2015, $5,767,236 in 2014 and ($3,437,175) in 2013	3,458,060	(10,386,089)	6,254,558
Total other comprehensive income/(loss)	1,448,783	(11,514,416)	5,597,586
Comprehensive income/(loss)	$ 7,175,826	$ (3,852,940)	$ 12,499,507