Note 2 - Revenue - Customer Accounts Receivable (Details) - USD ($) |
9 Months Ended | |||
|---|---|---|---|---|
Jun. 30, 2026 |
Sep. 30, 2025 |
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| Trade accounts receivable | $ 6,346,425 | $ 4,836,982 | ||
| Unbilled revenue | [1] | 1,329,228 | 1,373,512 | |
| Customer credit balances | 1,097,450 | 1,891,161 | ||
| Customer deposits | 1,962,431 | 1,537,311 | ||
| Increase (decrease) in Unbilled revenue | [1] | (44,284) | ||
| Increase (decrease) in Customer credit balances | (793,711) | |||
| Increase (decrease) in Customer deposits | 425,120 | |||
| Trade Accounts Receivable [Member] | ||||
| Trade accounts receivable | [1] | 4,971,493 | $ 3,354,154 | |
| Increase (decrease) in Trade accounts receivable | [1] | $ 1,617,339 | ||
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| X | ||||||||||
- Definition Amount of increase (decrease) of liability for consideration received or receivable from customer which is not included in the transaction price, when considered is expected to be refunded to customer. No definition available.
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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