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Note 5 - Goodwill and Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Accumulated Amortization | $ (27,062) | $ (20,669)
Net | $ 37,790 | 40,797
Finite-Lived Intangible Asset, Useful Life |  |
Carrying Amount | $ 64,852 | 61,466
Minimum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 3 years |
Maximum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 16 years |
Intellectual Property [Member] |  |
Accumulated Amortization | $ (3,824) | (3,093)
Net | 3,386 | 4,271
Carrying Amount | $ 7,210 | $ 7,364
Intellectual Property [Member] | Minimum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 10 years | 10 years
Intellectual Property [Member] | Maximum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 16 years | 16 years
Trade Names [Member] |  |
Accumulated Amortization | $ (1,727) | $ (1,271)
Net | 1,936 | 2,203
Carrying Amount | $ 3,663 | $ 3,474
Trade Names [Member] | Minimum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 3 years | 3 years
Trade Names [Member] | Maximum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 10 years | 10 years
Customer Relationships [Member] |  |
Accumulated Amortization | $ (20,260) | $ (15,228)
Net | 31,874 | 33,554
Carrying Amount | $ 52,134 | $ 48,782
Customer Relationships [Member] | Minimum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 7 years | 7 years
Customer Relationships [Member] | Maximum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 10 years | 10 years
Noncompete Agreements [Member] |  |
Accumulated Amortization | $ (1,251) | $ (1,077)
Net | 594 | 769
Carrying Amount | $ 1,845 | $ 1,846
Noncompete Agreements [Member] | Minimum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 3 years | 3 years
Noncompete Agreements [Member] | Maximum [Member] |  |
Finite-Lived Intangible Asset, Useful Life | 10 years | 10 years

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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