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Note 13 - Business Segments (Tables)

6 Months Ended

Jun. 30, 2014

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

	Three Months Ended June 30, 2014				Six Months Ended June 30, 2014
	Trade Revenue		Segment Operating Income		Trade Revenue		Segment Operating Income
Permeation	$	5,043,897	$	661,134	$	10,892,396	$	1,674,731
Package Testing		7,353,969		678,486		13,978,436		729,038
Industrial Analyzers and Other		3,176,657		446,254		6,016,839		502,736
Total	$	15,574,523	$	1,785,874	$	30,887,671	$	2,906,505

	Three Months Ended June 30, 2013					Six Months Ended June 30, 2013
	Trade Revenue		Segment Operating Income (Loss)			Trade Revenue		Segment Operating Income
Permeation	$	5,150,886	$	863,123		$	10,116,828	$	1,352,966
Package Testing		6,035,986		(20,688	)		12,647,618		509,164
Industrial Analyzers and Other		2,501,143		66,785			5,370,747		302,438
Total	$	13,688,015	$	909,220		$	28,135,193	$	2,164,568

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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