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Note 4 - Fair Value of Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2025

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

		As of March 31, 2025
		(Level 1)				(Level 2)				(Level 3)				Totals
Short-term investments:
Corporate bonds		$	—			$	9,279			$	—			$	9,279
U.S. treasury securities and securities of U.S. government-sponsored agency			—				2,252				—				2,252
Total		$	—			$	11,531			$	—			$	11,531

		As of September 30, 2024
		(Level 1)				(Level 2)				(Level 3)				Totals
Recurring:
Short-term investments:
Corporate bonds		$	—			$	21,849			$	—			$	21,849
U.S. treasury securities and securities of U.S. government-sponsored agency			—				8,378				—				8,378
Total		$	—			$	30,227			$	—			$	30,227
Nonrecurring:
Note receivable on sale of subsidiary		$	—			$	—			$	2,600			$	2,600

X

- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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X

- References

No definition available.

+ Details

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