Segment Information (Details) - USD ($)	3 Months Ended
Apr. 02, 2016	Apr. 04, 2015
Segment Reporting Information [Line Items]
Revenues, sales to unaffiliated customers	$ 33,101,657	$ 36,876,842
Operating Profit	960,864	1,371,483
Interest expense	(36,285)	(52,825)
Other income	21,374	7,007
Income before income taxes	945,953	1,325,665
Industrial Hardware [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues, sales to unaffiliated customers	14,591,513	14,786,666
Operating Profit	697,196	731,545
Security Products [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues, sales to unaffiliated customers	14,197,217	14,100,916
Operating Profit	1,128,196	786,291
Metal Products [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues, sales to unaffiliated customers	4,312,927	7,989,260
Operating Profit	$ (864,528)	$ (146,353)

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51673353&loc=d3e41242-110953

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 10
-Article 5

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Amount of the cost of borrowed funds accounted for as interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.9)
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7)
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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