Note 12 - Guarantees (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Product Warranty Liability [Table Text Block]

	2012			2011
Balance - Beginning of period	$	214		$	274
Acquisition of Thermonics		67			-
Payments made under warranty		(141	)		(182	)
Accruals for product warranty		57			122
Balance - End of period	$	197		$	214