Note 12 - Business Segments (Tables)

6 Months Ended

Jun. 30, 2016

Notes Tables

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

	Package Testing		Permeation		Industrial Analyzers and Other			Unallocated - Corporate			Consolidated
Three Months Ended June 30, 2016
Revenue	$	7,328	$	5,483	$	2,820		$	-		$	15,631
Gross profit		4,113		3,296		1,362			-			8,771
Operating income (loss)		696		1,023		(116	)		(750	)		853
Three Months Ended June 30, 2015
Revenue	$	6,473	$	5,966	$	2,610		$	-		$	15,049
Gross profit		3,472		3,416		1,138			-			8,026
Operating income (loss)		556		1,143		(507	)		(128	)		1,064
Six Months Ended June 30, 2016
Revenue	$	14,331	$	10,766	$	5,264		$	-		$	30,361
Gross profit		8,144		6,291		2,440			-			16,875
Operating income (loss)		1,543		1,328		(505	)		(750	)		1,616
Six Months Ended June 30, 2015
Revenue	$	13,229	$	12,068	$	5,112		$	-		$	30,409
Gross profit		7,149		6,989		2,366			-			16,504
Operating income (loss)		1,444		1,821		(934	)		(128	)		2,203