Note 12 - Segment Information (Tables)

3 Months Ended

Mar. 31, 2013

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

	Mar. 31, 2013		Dec. 31, 2012
Identifiable assets:
Thermal Products	$	21,990	$	20,849
Mechanical Products		6,951		7,737
Electrical Products		3,662		3,813
	$	32,603	$	32,399

	Mar. 31, 2013		Dec. 31, 2012
Long-lived assets:
U.S.	$	871	$	899
Foreign		308		351
	$	1,179	$	1,250

Three Months [Member]

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

	Three Months Ended March 31,
Net revenues from unaffiliated customers:	2013			2012
Thermal Products	$	5,898		$	6,111
Mechanical Products		1,796			2,514
Electrical Products		1,282			2,116
Intersegment sales		(3	)		(10	)
	$	8,973		$	10,731
Intersegment sales:
Thermal Products	$	-		$	-
Mechanical Products		3			10
Electrical Products		-			-
	$	3		$	10
Earnings (loss) before income tax expense (benefit):
Thermal Products	$	1,158		$	317
Mechanical Products		(686	)		(552	)
Electrical Products		(8	)		365
Corporate		(94	)		(201	)
	$	370		$	(71	)
Net earnings (loss):
Thermal Products	$	914		$	190
Mechanical Products		(542	)		(331	)
Electrical Products		(6	)		219
Corporate		(74	)		(121	)
	$	292		$	(43	)

	Three Months Ended March 31,
	2013		2012
Net revenues from unaffiliated customers:
U.S.	$	3,214	$	4,196
Foreign		5,759		6,535
	$	8,973	$	10,731