Note 12 - Segment Information (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

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

	Three Months Ended June 30,						Six Months Ended June 30,
	20 20			201 9			20 20			201 9
Net Revenues:
Thermal	$	9,476		$	10,519		$	18,810		$	23,153
EMS		3,799			3,833			5,695			9,261
	$	13,275		$	14,352		$	24,505		$	32,414
Earnings (loss) before income tax expense (benefit):
Thermal	$	(13	)	$	309		$	(439	)	$	1,453
EMS		261			102			(743	)		1,149
Corporate		(65	)		(711	)		(28	)		(1,440	)
	$	183		$	(300	)	$	(1,210	)	$	1,162
Net earnings (loss):
Thermal	$	(3	)	$	298		$	(353	)	$	1,189
EMS		226			125			(598	)		940
Corporate		(53	)		(610	)		(22	)		(1,178	)
	$	170		$	(187	)	$	(973	)	$	951

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

	Three Months Ended June 30,				Six Months Ended June 30,
	20 20		201 9		20 20		201 9
Net revenues:
U.S.	$	4,954	$	6,283	$	10,673	$	13,093
Foreign		8,321		8,069		13,832		19,321
	$	13,275	$	14,352	$	24,505	$	32,414

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

	June 3 0 , 2020		December 31, 2019
Property and equipment:
U.S.	$	1,920	$	2,163
Foreign		375		257
	$	2,295	$	2,420

Asset [Member]

Notes Tables

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

	June 3 0 , 2020		December 31, 2019
Identifiable assets:
Thermal	$	51,380	$	51,621
EMS		7,704		7,319
Corporate		774		775
	$	59,858	$	59,715