Note 3 - Acquisition (Tables)

6 Months Ended

18 Months Ended

Jun. 30, 2012

Jun. 30, 2012

Schedule of Purchase Price Allocation [Table Text Block]

Goodwill	$	50
Identifable intangible assets		1,728
Tangible assets acquired and liabilities assumed:
Trade accounts receivable		1,161
Inventories		874
Property and equipment		263
Accounts payable		(77	)
Accrued non-compete/non-solicitation payments		(48	)
Accrued sales commissions		(82	)
Accrued warranty		(67	)
Total purchase price	$	3,802

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

	June 30, 2012
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	1,480	$	316	$	1,164
Patented technology		590		190		400
Software		270		101		169
Trade name		140		16		124
Customer backlog		70		70		-
Non-compete/non-solicitation agreement		48		8		40
Total finite-lived intangible assets		2,598		701		1,897
Indefinite-lived intangible assets:
Trademark		510		-		510
Total intangible assets	$	3,108	$	701	$	2,407

	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:
Trademark		510		-		510
Total intangible assets	$	1,380	$	438	$	942

Business Acquisition, Pro Forma Information [Table Text Block]

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Net revenues	$	13,576	$	14,975	$	24,523	$	28,045
Net earnings		1,334		2,259		1,879		2,676
Diluted earnings per share	$	0.13	$	0.22	$	0.18	$	0.26

Thermonics [Member]

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

	Fair Value		Weighted Average Estimated Useful Life (in months)
Customer relationships	$	1,110		72
Customer backlog		70		3
Thermonics trade name		140		48
Patented technology		360		132
Non-compete/non-solicitation agreement		48		18
Total intangible assets	$	1,728		78.3