Note 12 - Segment Information (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Net Revenues:
Thermal	$	10,622		$	14,616		$	33,775		$	41,849
EMS		4,010			5,544			13,271			18,279
	$	14,632		$	20,160		$	47,046		$	60,128
Earnings (loss) before income tax expense (benefit):
Thermal	$	496		$	(684	)	$	1,949		$	1,816
EMS		475			1,293			1,624			4,779
Corporate		(177	)		(447	)		(1,617	)		(1,055	)
	$	794		$	162		$	1,956		$	5,540
Net earnings (loss):
Thermal	$	403		$	(1,192	)	$	1,592		$	768
EMS		387			978			1,327			3,928
Corporate		(143	)		(352	)		(1,321	)		(867	)
	$	647		$	(566	)	$	1,598		$	3,829

Revenue from External Customers by Geographic Areas [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Net revenues:
U.S.	$	6,226	$	4,982	$	19,319	$	18,343
Foreign		8,406		15,178		27,727		41,785
	$	14,632	$	20,160	$	47,046	$	60,128

Long-lived Assets by Geographic Areas [Table Text Block]

	September 30, 2019		December 31, 2018
Property and equipment:
U.S.	$	2,170	$	2,327
Foreign		253		390
	$	2,423	$	2,717

Asset [Member]

Notes Tables

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

	September 30, 2019		December 31, 2018
Identifiable assets:
Thermal	$	53,117	$	55,343
EMS		7,172		6,692
Corporate		1,016		5,152
	$	61,305	$	67,187