Note 2 - Summary of Significant Accounting Policies	3 Months Ended
Dec. 31, 2023
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. Summary of Significant Accounting Policies Basis of Presentation and Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant inter-company balances and transactions have been eliminated in consolidation. Unaudited Interim Financial Information The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”), and with the instructions to Form 10-Q and Regulation S-X, and in the opinion of the Company’s management, these condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments and accruals, necessary for their fair presentation. The operating results for the three months ended December 31, 2023 are not necessarily indicative of the results to be expected for the year ending September 30, 2024. The accompanying September 30, 2023 Condensed Consolidated Balance Sheet has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s annual report on Form 10-K for the year ended September 30, 2023, filed with the Securities and Exchange Commission (“SEC”) on December 27, 2023. *Recently Adopted Accounting Pronouncements* Financial Instruments – Credit Losses Effective October 1, 2023, the Company adopted the requirements of ASU 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), along with the subsequently issued guidance amending and clarifying various aspects of ASU 2016-13, using the modified retrospective method of adoption. In accordance with that method, the comparative periods’ information continues to be reported under the relevant accounting guidance in effect for that period. For the current period, the standard replaces the existing incurred credit loss model with the current expected credit losses model for financial instruments, including accounts receivable, through a cumulative-effect adjustment to accumulated deficit as of the beginning of the first reporting period in which the guidance is effective. Although the adoption of ASU 2016-13 did not have a material impact on the condensed consolidated financial statements it represented a change in the accounting policy with respect to the estimation of allowance for uncollectible accounts. The allowance for credit losses is determined based upon a variety of judgments and factors. Factors considered in determining the allowance include historical collection, write-off experience, and management's assessment of collectability from customers, including current conditions, reasonable forecasts, and expectations of future collectability and collection efforts. Management continuously assesses the collectability of receivables and adjusts estimates based on actual experience and future expectations based on economic indicators. Management also monitors the aging analysis of receivables to determine if there are changes in the collections of accounts receivable. Receivable balances are written-off against the allowance for credit losses when such balances are deemed to be uncollectible. Business Combinations In October 2021, the FASB issued ASU No. 2021 - 08, Business Combinations (Topic 606): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606 as if it had originated the contracts. Generally, this should result in an acquirer recognizing and measuring the acquired contract assets and contract liabilities consistent with how they were recognized and measured in the acquiree’s financial statements, if the acquiree prepared financial statements in accordance with U.S. GAAP. The amendment in this update is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The guidance should be applied prospectively to business combinations occurring on or after the effective date of the amendment in this update. The adoption of ASU 2021 - 08 during the Company's fiscal 2024 first quarter did not have a material impact on its consolidated financial statements and related disclosures. *Accounting Pronouncements Pending Adoption* Segment Reporting In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires that an entity report segment information in accordance with Topic 280, Segment Reporting. The amendment in the ASU is intended to improve reportable segment disclosure requirements primarily through enhanced disclosures about significant segment expenses. The amendments in this Update are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is currently evaluating the impact of the new standard on its consolidated financial statements which is expected to result in enhanced disclosures. Income Taxes In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires that an entity, on an annual basis, disclose additional income tax information, primarily related to the rate reconciliation and income taxes paid. The amendment in the ASU is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in this Update are effective for annual periods beginning after December 15, 2024. The Company is currently evaluating the impact of the new standard on its consolidated financial statements which is expected to result in enhanced disclosures. All other Accounting Standards Updates issued but not yet effective are not expected to have a material effect on the Company’s future consolidated financial statements or related disclosures.

Note 2 - Summary of Significant Accounting Policies

3 Months Ended

Dec. 31, 2023

Significant Accounting Policies [Text Block]

2. Summary of Significant Accounting Policies

Basis of Presentation and Principles of Consolidation

The condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant inter-company balances and transactions have been eliminated in consolidation.

Unaudited Interim Financial Information

The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”), and with the instructions to Form 10-Q and Regulation S-X, and in the opinion of the Company’s management, these condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments and accruals, necessary for their fair presentation. The operating results for the three months ended December 31, 2023 are not necessarily indicative of the results to be expected for the year ending September 30, 2024. The accompanying September 30, 2023 Condensed Consolidated Balance Sheet has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s annual report on Form 10-K for the year ended September 30, 2023, filed with the Securities and Exchange Commission (“SEC”) on December 27, 2023.

Recently Adopted Accounting Pronouncements

Financial Instruments – Credit Losses

Effective October 1, 2023, the Company adopted the requirements of ASU 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), along with the subsequently issued guidance amending and clarifying various aspects of ASU 2016-13, using the modified retrospective method of adoption. In accordance with that method, the comparative periods’ information continues to be reported under the relevant accounting guidance in effect for that period. For the current period, the standard replaces the existing incurred credit loss model with the current expected credit losses model for financial instruments, including accounts receivable, through a cumulative-effect adjustment to accumulated deficit as of the beginning of the first reporting period in which the guidance is effective. Although the adoption of ASU 2016-13 did not have a material impact on the condensed consolidated financial statements it represented a change in the accounting policy with respect to the estimation of allowance for uncollectible accounts.

The allowance for credit losses is determined based upon a variety of judgments and factors. Factors considered in determining the allowance include historical collection, write-off experience, and management's assessment of collectability from customers, including current conditions, reasonable forecasts, and expectations of future collectability and collection efforts. Management continuously assesses the collectability of receivables and adjusts estimates based on actual experience and future expectations based on economic indicators. Management also monitors the aging analysis of receivables to determine if there are changes in the collections of accounts receivable. Receivable balances are written-off against the allowance for credit losses when such balances are deemed to be uncollectible.

Business Combinations

In October 2021, the FASB issued ASU No. 2021 - 08, Business Combinations (Topic 606): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606 as if it had originated the contracts. Generally, this should result in an acquirer recognizing and measuring the acquired contract assets and contract liabilities consistent with how they were recognized and measured in the acquiree’s financial statements, if the acquiree prepared financial statements in accordance with U.S. GAAP. The amendment in this update is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The guidance should be applied prospectively to business combinations occurring on or after the effective date of the amendment in this update. The adoption of ASU 2021 - 08 during the Company's fiscal 2024 first quarter did not have a material impact on its consolidated financial statements and related disclosures.

Accounting Pronouncements Pending Adoption

Segment Reporting

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires that an entity report segment information in accordance with Topic 280, Segment Reporting. The amendment in the ASU is intended to improve reportable segment disclosure requirements primarily through enhanced disclosures about significant segment expenses. The amendments in this Update are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is currently evaluating the impact of the new standard on its consolidated financial statements which is expected to result in enhanced disclosures.

Income Taxes

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires that an entity, on an annual basis, disclose additional income tax information, primarily related to the rate reconciliation and income taxes paid. The amendment in the ASU is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in this Update are effective for annual periods beginning after December 15, 2024. The Company is currently evaluating the impact of the new standard on its consolidated financial statements which is expected to result in enhanced disclosures.

All other Accounting Standards Updates issued but not yet effective are not expected to have a material effect on the Company’s future consolidated financial statements or related disclosures.