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Note 15 - Segment Data - Operating Segment Asset Reconciliation (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Assets	$ 164,101	$ 171,733
Corporate, Non-Segment [Member]
Assets	9,283	7,593
Sterilzation and Disinfection Control [Member] | Operating Segments [Member]
Assets	83,452	67,233
Instruments [Member] | Operating Segments [Member]
Assets	33,479	40,805
Cold Chain Monitoring [Member] | Operating Segments [Member]
Assets	30,796	35,789
Cold Chain Packaging [Member] | Operating Segments [Member]
Assets	$ 7,091	$ 20,313

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://fasb.org/us-gaap/role/ref/legacyRef
-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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-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

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