Goodwill (Details)	9 Months Ended
	Oct. 01, 2016 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 14,790,793
Foreign exchange	51,962
Ending balance	14,842,755
Industrial Hardware Segment [Member]
Goodwill [Roll Forward]
Beginning balance	1,731,751
Foreign exchange	51,962
Ending balance	1,783,713
Security Products Segment [Member]
Goodwill [Roll Forward]
Beginning balance	13,059,042
Foreign exchange	0
Ending balance	13,059,042
Metal Products Segment [Member]
Goodwill [Roll Forward]
Beginning balance	0
Foreign exchange	0
Ending balance	$ 0