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Note 6 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

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

						Fair Value Measurements Using
						Quoted Prices				Significant
						in Active				Other
		Balance as of				Markets for				Observable
		June 30,				Identical Assets				Inputs
		2023				(Level 1)				(Level 2)
Assets:
Cash equivalents
Money market funds		$	596			$	596			$	—
Marketable securities
U.S. government			18,915				18,915				—
Corporate bonds			6,485				—				6,485
Commercial paper			2,011				—				2,011
Certificates of deposit			7,733				—				7,733
Total marketable securities			35,144				18,915				16,229
Total assets at fair value		$	35,740			$	19,511			$	16,229

						Fair Value Measurements Using
						Quoted Prices				Significant
						in Active				Other
		Balance as of				Markets for				Observable
		December 31,				Identical Assets				Inputs
		2022				(Level 1)				(Level 2)
Marketable securities
U.S. government		$	28,693			$	28,693			$	—
Corporate bonds			2,387				—				2,387
Commercial paper			9,392				—				9,392
Certificates of deposit			4,084				—				4,084
Total marketable securities		$	44,556			$	28,693			$	15,863

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/2003/role/disclosureRef
-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 2: http://www.xbrl.org/2003/role/disclosureRef
-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

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X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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