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Note 4 - Assets and Liabilities Measured at Fair Values on a Recurring Basis (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Sep. 30, 2015
--- | --- | ---
Fair Value, Inputs, Level 3 [Member] |  |
Liabilities: |  |
Contingent acquisition consideration | $ 226 | $ 468
Total liabilities | 226 | $ 468
Fair Value, Inputs, Level 2 [Member] |  |
Liabilities: |  |
Total liabilities |  |
Contingent acquisition consideration | 226 | $ 468
Total liabilities | $ 226 | $ 468

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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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