Accounting Policies (Tables)

12 Months Ended

Dec. 29, 2012

Accounting Policies [Abstract]

Gross carrying amount and accumulated amortization of amortizable intangible assets

The gross carrying amount and accumulated amortization of amortizable intangible assets:

	Industrial Hardware Segment		Security Products Segment		Metal Products Segment		Total		Weighted-Average Amortization Period (Years)
2012 Patents and developed technology
Gross Amount:	$	2,732,307	$	1,021,409	$	5,839	$	3,759,555		15.8
Accumulated amortization:		1,652,199		447,732		5,667		2,105,598
Net 2012 per Balance Sheet	$	1,080,108	$	573,677	$	172	$	1,653,957
2011 Gross Amount:
Patents and developed technology	$	2,714,900	$	1,062,652	$	5,839	$	3,783,391		15.5
Customer relationships		45,825		1,921,811		—		1,967,636		5.0
Non-compete agreements		30,000		90,735		—		120,735		5.0
Total Gross Intangibles	$	2,790,725	$	3,075,198	$	5,839	$	5,871,762		11.7
2011 Accumulated Amortization:
Patents and developed technology	$	1,528,007	$	495,218	$	5,323	$	2,028,548
Customer relationships		36,660		1,921,811		—		1,958,471
Non-compete agreements		24,000		90,735		—		114,735
Total Gross Amortization	$	1,588,667	$	2,507,764	$	5,323	$	4,101,754
Net 2011 per Balance Sheet	$	1,202,058	$	567,434	$	516	$	1,770,008

Roll-forward of goodwill

The following is a roll-forward of goodwill for 2012 and 2011:

	Industrial Hardware Segment			Security Products Segment		Metal Products Segment		Total
2012
Beginning balance	$	2,071,393		$	11,833,816	$	—	$	13,905,209
Foreign exchange		28,390			—		—		28,390
Ending balance	$	2,099,783		$	11,833,816	$	—	$	13,933,599
2011
Beginning balance	$	2,100,174		$	11,833,816	$	—	$	13,933,990
Foreign exchange		(28,781	)		—		—		(28,781	)
Ending balance	$	2,071,393		$	11,833,816	$	—	$	13,905,209

Denominators used in the earnings per share computations

The denominators used in the earnings per share computations follow:

	2012		2011		2010
Basic:
Weighted average shares outstanding		6,216,931		6,178,664		6,104,711
Diluted:
Weighted average shares outstanding		6,216,931		6,178,664		6,104,711
Dilutive stock options		16,444		37,529		87,308
Denominator for diluted earnings per share		6,233,375		6,216,193		6,192,019