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Note 5 - Fair Value Measurements (Tables)

3 Months Ended

Sep. 30, 2025

Notes Tables

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

			Fair Value Measurements at September 30, 2025
Financial Assets	Balance Sheet Location		Level 1				Level 2				Level 3				Total
Corporate money market funds(1)	Cash and cash equivalents		$	29,515			$	-			$	-			$	29,515
U.S. Treasury bills(2)	Investments, short-term			-				49,985				-				49,985
U.S. Treasury notes(2)	Investments, long-term			-				70,045				-				70,045
Total			$	29,515			$	120,030			$	-			$	149,545

			Fair Value Measurements at June 30, 2025
Financial Assets	Balance Sheet Location		Level 1				Level 2				Level 3				Total
Corporate money market funds(1)	Cash and cash equivalents		$	33,279			$	-			$	-			$	33,279
U.S. Treasury bills(2)	Investments, short-term			-				59,955				-				59,955
U.S. Treasury notes(2)	Investments, long-term			-				60,030				-				60,030
Total			$	33,279			$	119,985			$	-			$	153,264

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- Definition

Tabular disclosure of financial instrument measured at fair value on recurring or nonrecurring basis. Includes, but is not limited to, instrument classified in shareholders' equity.

+ 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

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 100
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-100

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-3

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- References

No definition available.

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