Note 1 - Organization and Description of Business and Significant Accounting Policies - Additional Information Related to RSUs (Details) - Restricted Stock Units (RSUs) [Member] $ in Thousands	12 Months Ended
Sep. 30, 2024 USD ($)
Unrecognized compensation expense related to RSUs	$ 2,862
Weighted average remaining period to expense for RSUs (in years) (Year)	3 years 1 month 6 days

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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