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Note 5 - Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Mar. 31, 2018
Notes Tables |
Schedule of Goodwill [Table Text Block] |
|  | Sterilization and Disinfection Control |  |  | Instruments |  |  | Cold Chain Monitoring |  |  | Cold Chain Packaging |  |  | Total |
March 31, 2016 |  | $ | 20,898 |  |  | $ | 18,235 |  |  | $ | 13,647 |  |  | $ | 13,357 |  |  | $ | 66,137 |
Effect of foreign currency translation |  |  | (97 | ) |  |  | -- |  |  |  | -- |  |  |  | (374 | ) |  |  | (471 | )
Acquisitions |  |  | 3,218 |  |  |  | -- |  |  |  | 1,757 |  |  |  | 1,515 |  |  |  | 6,490 |
March 31, 2017 |  |  | 24,019 |  |  |  | 18,235 |  |  |  | 15,404 |  |  |  | 14,498 |  |  |  | 72,156 |
Effect of foreign currency translation |  |  | 536 |  |  |  | -- |  |  |  | -- |  |  |  | 722 |  |  |  | 1,258 |
Acquisitions |  |  | 5,948 |  |  |  | -- |  |  |  |  |  |  |  | -- |  |  |  | 5,948 |
Impairment |  |  | -- |  |  |  | -- |  |  |  | -- |  |  |  | (13,819 | ) |  |  | (13,819 | )
March 31, 2018 |  | $ | 30,503 |  |  | $ | 18,235 |  |  | $ | 15,404 |  |  | $ | 1,401 |  |  | $ | 65,543 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
(In thousands) |  | March 31, 201 8 |
|  | Carrying Amount |  |  | Accumulated Amortization |  |  | Net |  |  | Useful Life (Years) |
Intellectual property |  | $ | 7,210 |  |  | $ | (4,554 | ) |  | $ | 2,656 |  |  | 10 | - | 16 |
Trade names |  |  | 3,675 |  |  |  | (2,154 | ) |  |  | 1,521 |  |  | 3 | - | 10 |
Customer relationships |  |  | 64,363 |  |  |  | (26,128 | ) |  |  | 38,235 |  |  | 7 | - | 10 |
Non-compete agreements |  |  | 1,865 |  |  |  | (1,427 | ) |  |  | 438 |  |  | 3 | - | 10 |
|  | $ | 77,113 |  |  | $ | (34,263 | ) |  | $ | 42,850 |  |  |  |  |  |
|  | March 31, 201 7 |
|  | Carrying Amount |  |  | Accumulated Amortization |  |  | Net |  |  | Useful Life (Years) |
Intellectual property |  | $ | 7,210 |  |  | $ | (3,824 | ) |  | $ | 3,386 |  |  | 10 | - | 16 |
Trade names |  |  | 3,663 |  |  |  | (1,727 | ) |  |  | 1,936 |  |  | 3 | - | 10 |
Customer relationships |  |  | 52,134 |  |  |  | (20,260 | ) |  |  | 31,874 |  |  | 7 | - | 10 |
Non-compete agreements |  |  | 1,845 |  |  |  | (1,251 | ) |  |  | 594 |  |  | 3 | - | 10 |
|  | $ | 64,852 |  |  | $ | (27,062 | ) |  | $ | 37,790 |  |  |  |  |  |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
(In thousands) |  |  |  |
2019 |  | $ | 7,249 |
2020 |  |  | 6,915 |
2021 |  |  | 5,870 |
2022 |  |  | 5,869 |
2023 |  |  | 5,235 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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