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Note 7 - Goodwill and Other Intangible Assets (Details) - USD ($) | Sep. 30, 2015 | Jun. 30, 2015 | Sep. 30, 2014
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Note 7 - Goodwill and Other Intangible Assets (Details) [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | $ 22,052,000 | $ 22,052,000 |
Finite-Lived Intangible Assets, Accumulated Amortization | 19,508,000 | 19,382,000 |
Customer Relationships [Member] |  |  |
Note 7 - Goodwill and Other Intangible Assets (Details) [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 9,316,000 | 9,316,000 |
Finite-Lived Intangible Assets, Accumulated Amortization | $ 7,363,000 | $ 7,290,000 |
Customer Relationships [Member] | LSI Saco [Member] |  |  |
Note 7 - Goodwill and Other Intangible Assets (Details) [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  |  | $ 1,036,000
Finite-Lived Intangible Assets, Accumulated Amortization |  |  | $ 428,000

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