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Note 9 - Segment Information - Operating Segment Asset Reconciliation (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 31, 2016
Assets	$ 170,453	$ 160,748
Corporate, Non-Segment [Member]
Assets	7,442	7,856
Biological Indicators [Member] | Operating Segments [Member]
Assets	67,894	56,724
Instruments [Member] | Operating Segments [Member]
Assets	38,295	49,077
Cold Chain Monitoring [Member] | Operating Segments [Member]
Assets	35,497	27,613
Cold Chain Packaging [Member] | Operating Segments [Member]
Assets	$ 21,325	$ 19,478

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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