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Note 15 - Segment Data (Tables)

12 Months Ended

Mar. 31, 2017

Notes Tables

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

		Year Ended March 31, 201 7
		Biological Indicators				Instruments				Cold Chain Monitoring				Cold Chain Packaging				Total
Revenues		$	38,635			$	34,405			$	12,584			$	8,041			$	93,665
Gross profit		$	25,566			$	21,172			$	4,533			$	1,968				53,239
Reconciling items (1)																			(38,943	)
Earnings before income taxes																		$	14,296

		Year Ended March 31, 201 6
		Biological Indicators				Instruments				Cold Chain Monitoring				Cold Chain Packaging				Total
Revenues		$	33,649			$	35,692			$	11,566			$	3,752			$	84,659
Gross profit		$	22,205			$	23,223			$	4,201			$	1,784				51,413
Reconciling items (1)																			(35,858	)
Earnings before income taxes																		$	15,555

		Year Ended March 31, 2015
		Biological Indicators				Instruments				Cold Chain Monitoring				Cold Chain Packaging				Total
Revenues		$	27,390			$	33,054			$	10,886			$	--			$	71,330
Gross profit		$	17,142			$	20,763			$	5,487			$	--			$	43,392
Reconciling items (1)																			(28,045	)
Earnings before income taxes																		$	15,347

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

		Year Ended March 31,
		201 7				201 6				201 5
Revenues from unaffiliated customers
United States		$	52,989			$	53,094			$	45,798
Foreign			40,676				31,565				25,532
		$	93,665			$	84,659			$	71,330

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

		March 31,
		2017				2016
Total assets
Biological Indicators		$	67,233			$	56,724
Instruments			40,805				49,077
Cold Chain Monitoring			35,789				27,613
Cold Chain Packaging			20,313				19,478
Corporate and administrative			7,593				7,856
		$	171,733			$	160,748

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Tabular disclosure of all significant reconciling items in the reconciliation of total assets from reportable segments to the entity's consolidated assets.

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+ References

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