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Note 6 - Line-of-credit (Tables) | 12 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule of Line of Credit Available Credit Limit [Table Text Block] |
|  |  | Available |
|  |  | Line-of-Credit |
As of September 30, 2025 |  |  | $ | 20,000,000 |
October 1, 2025 through March 31, 2026 |  |  |  | 30,000,000 |
April 1, 2026 through September 30, 2026 |  |  |  | 20,000,000 |
October 1, 2026 through March 31, 2027 |  |  |  | 30,000,000 |
Schedule of Line of Credit Facilities [Table Text Block] |
|  | September 30 |
|  | 2025 |  |  | 2024 |
Borrowing limit at year-end |  | $ | 20,000,000 |  |  | $ | 20,000,000 |
Outstanding balance at year-end |  |  | 11,916,760 |  |  |  | 11,166,181 |
Average rate of interest during year on outstanding balances |  |  | 5.56 | % |  |  | 6.39 | %
Interest rate at year-end |  |  | 5.42 | % |  |  | 6.29 | %
Interest rate on unused line-of-credit |  |  | 0.25 | % |  |  | 0.15 | %

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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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