Note 4 - Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Goodwill [Table Text Block]

	Sigma		Thermonics		Total
Balance - January 1, 2012	$	1,656	$	-	$	1,656
Acquisition of Thermonics		-		50		50
Balance - September 30, 2012	$	1,656	$	50	$	1,706

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	Sept. 30, 2012
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	1,480	$	377	$	1,103
Patented technology		590		212		378
Software		270		108		162
Trade name		140		25		115
Customer backlog		70		70		-
Non-compete/non-solicitation agreement		48		16		32
Total finite-lived intangible assets		2,598		808		1,790
Indefinite-lived intangible assets:
Sigma trademark		510		-		510
Total intangible assets	$	3,108	$	808	$	2,300

	December 31, 2011
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	370	$	200	$	170
Patented technology		230		150		80
Software		270		88		182
Total finite-lived intangible assets		870		438		432
Indefinite-lived intangible assets:
Sigma trademark		510		-		510
Total intangible assets	$	1,380	$	438	$	942

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

2013	$	446
2014	$	355
2015	$	289
2016	$	229
2017	$	212

Useful Life [Member]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	Estimated Useful Life		Remaining Estimated Useful Life at Sept. 30, 2012
	- - - - (in months) - - - -
Finite-lived intangible assets resulting from the acquisition of Sigma:
Customer relationships		72		24
Software		120		72
Patented technology		60		12
Finite-lived intangible assets resulting from the acquisition of Thermonics:
Customer relationships		72		63.5
Customer backlog		3		-
Trade name		48		39.5
Patented technology		132		123.5
Non-compete/non-solicitation agreement		18		12

Carrying Value Changes [Member]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

Balance - January 1, 2012	$	432
Acquisition of Thermonics		1,728
Amortization		(370	)
Balance - September 30, 2012	$	1,790