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Note 7 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) | Sep. 30, 2016 | Jun. 30, 2016
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Customer Relationships [Member] |  |
Finite Lived Intangible Assets, Gross | $ 9,316,000 | $ 9,316,000
Accumulated Amortization | 7,654,000 | 7,581,000
Net Amount | 1,662,000 | 1,735,000
Patents [Member] |  |
Finite Lived Intangible Assets, Gross | 338,000 | 338,000
Accumulated Amortization | 163,000 | 154,000
Net Amount | 175,000 | 184,000
Technology-Based Intangible Assets [Member] |  |
Finite Lived Intangible Assets, Gross | 11,228,000 | 11,228,000
Accumulated Amortization | 11,008,000 | 10,989,000
Net Amount | 220,000 | 239,000
Trade Names [Member] |  |
Finite Lived Intangible Assets, Gross | 460,000 | 460,000
Accumulated Amortization | 460,000 | 460,000
Noncompete Agreements [Member] |  |
Finite Lived Intangible Assets, Gross | 710,000 | 710,000
Accumulated Amortization | 710,000 | 704,000
Net Amount |  | 6,000
Trademarks and Trade Names [Member] |  |
Indefinite Lived Intangible Assets | 3,422,000 | 3,422,000
Total Indefinite-lived Intangible Assets | 3,422,000 | 3,422,000
Finite Lived Intangible Assets, Gross | 22,052,000 | 22,052,000
Accumulated Amortization | 19,995,000 | 19,888,000
Net Amount | 2,057,000 | 2,164,000
Indefinite Lived Intangible Assets | 3,422,000 | 3,422,000
Total Indefinite-lived Intangible Assets | 3,422,000 | 3,422,000
Total Other Intangible Assets | 25,474,000 | 25,474,000
Intangible Assets, Net (Excluding Goodwill) | $ 5,479,000 | $ 5,586,000

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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 of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + 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 (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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