Note 16 - Segment Information (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Years Ended December 31,
	2013			2012
Net revenues from unaffiliated customers:
Thermal Products	$	22,962		$	24,307
Mechanical Products		9,962			9,904
Electrical Products		6,502			9,165
	$	39,426		$	43,376
Depreciation/amortization:
Thermal Products	$	695		$	816
Mechanical Products		79			73
Electrical Products		73			44
	$	847		$	933
Operating income (loss):
Thermal Products	$	4,322		$	2,939
Mechanical Products		(784	)		(1,944	)
Electrical Products		722			2,023
Corporate		(298	)		(22	)
	$	3,962		$	2,996
Earnings (loss) before income tax expense (benefit):
Thermal Products	$	4,327		$	2,958
Mechanical Products		(772	)		(1,934	)
Electrical Products		751			2,051
Corporate		(298	)		(22	)
	$	4,008		$	3,053
Income tax expense (benefit):
Thermal Products	$	1,005		$	869
Mechanical Products		(179	)		(568	)
Electrical Products		174			602
Corporate		(69	)		(6	)
	$	931		$	897
Net earnings (loss):
Thermal Products	$	3,322		$	2,089
Mechanical Products		(593	)		(1,366	)
Electrical Products		577			1,449
Corporate		(229	)		(16	)
	$	3,077		$	2,156
Capital expenditures:
Thermal Products	$	349		$	216
Mechanical Products		16			37
Electrical Products		59			178
	$	424		$	431

	December 31,
	2013		2012
Identifiable assets:
Thermal Products	$	23,934	$	20,849
Mechanical Products		7,093		7,737
Electrical Products		4,454		3,813
	$	35,481	$	32,399

	Years Ended December 31,
	2013		2012
Net revenues from unaffiliated customers:
U.S.	$	13,337	$	15,915
Foreign		26,089		27,461
	$	39,426	$	43,376

	December 31,
	2013		2012
Long-lived assets:
U.S.	$	700	$	899
Foreign		554		351
	$	1,254	$	1,250