Segment Information (Details) (USD $)	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Revenues, sales to unaffiliated customers	$ 34,692,174	$ 40,495,894
Operating Profit	1,585,284	3,169,414
Interest expense	(86,076)	(89,237)
Other income	8,588	6,136
Income before income taxes	1,507,796	3,086,313
Industrial Hardware [Member]
Segment Reporting Information [Line Items]
Revenues, sales to unaffiliated customers	15,216,089	19,207,700
Operating Profit	603,987	1,964,557
Security Products [Member]
Segment Reporting Information [Line Items]
Revenues, sales to unaffiliated customers	10,980,151	12,114,823
Operating Profit	248,702	795,568
Metal Products [Member]
Segment Reporting Information [Line Items]
Revenues, sales to unaffiliated customers	8,495,934	9,173,371
Operating Profit	$ 732,595	$ 409,289