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Note 6 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Sep. 30, 2023 | Oct. 04, 2023
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | $ 3 |  |  |
Goodwill and Intangible Asset Impairment |  |  | $ 0 |
Payment for Contingent Consideration Liability, Financing Activities | 219 | $ (0) |  |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | (16) | $ 0 |  |
Evertel Technologies, LLC [Member] |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  |  | $ 1,050
Business Combination, Contingent Consideration, Liability | 0 |  |  | $ 890
Business Combination, Contingent Consideration, Liability Settled | 874 |  |  |
Payment for Contingent Consideration Liability, Financing Activities | 219 |  |  |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | $ 16 |  |  |
Evertel Technologies, LLC [Member] | Contingent Consideration Liability [Member] |  |  |  |
Stock Issued During Period, Shares, Acquisitions | 236,343 |  |  |

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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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