Note 1 - Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - USD ($) $ in Thousands |
Sep. 30, 2025 |
Sep. 30, 2024 |
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| Total cash and cash equivalents | $ 21,493 | $ 14,148 |
| Cash Including Money Market Accounts [Member] | ||
| Total cash and cash equivalents | 5,732 | 3,770 |
| Money Market Funds [Member] | ||
| Total cash and cash equivalents | $ 15,761 | $ 10,378 |
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- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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