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Note 5 - Derivative Instruments - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Sep. 30, 2024
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Cross Currency Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] |  |
Notional amount | $ 75,978 | $ 75,978
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] |  |
Notional amount | $ 36,573 | $ 60,101

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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A + Details
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