CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $)	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) [Abstract]
Net income	$ 2,174,294	$ 2,632,346	$ 3,179,542	$ 4,677,954
Other comprehensive income/(loss):
Change in foreign currency translation	(435,779)	(410,952)	(536,862)	51,933
Change in pension and postretirement benefit costs, net of taxes of: 2013 - $293,833 and $146,917, respectively 2012-$196,189 and $98,104, respectively	269,042	180,206	538,084	360,377
Total other comprehensive income/(loss)	(166,737)	(230,746)	1,222	412,310
Comprehensive income	$ 2,007,557	$ 2,401,600	$ 3,180,764	$ 5,090,264