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Note 4 - Balance Sheet Components (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Property, Plant and Equipment [Table Text Block]

		September 30,				December 31,
		2025				2024
Leasehold improvements		$	2,519			$	2,519
Laboratory equipment			1,522				1,342
Furniture, fixtures and equipment			966				966
Software			283				272
Construction in progress			46				29
Total property and equipment			5,336				5,128
Less: Accumulated depreciation and amortization			(4,281	)			(3,968	)
Total property and equipment, net		$	1,055			$	1,160

Schedule of Finite-Lived Intangible Assets [Table Text Block]

		September 30,				December 31,
		2025				2024
Acquired patents and licenses		$	8,005			$	7,985
Less: Accumulated amortization			(7,264	)			(6,765	)
Total intangible assets, net		$	741			$	1,220

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Years ending December 31:
2025 (remaining 3 months)		$	166
2026			575
Total		$	741

Schedule of Accrued Liabilities [Table Text Block]

		September 30,				December 31,
		2025				2024
Compensation expense		$	3,588			$	4,097
Clinical trial fees and costs			953				284
Professional fees			311				564
Legal settlement			—				1,196
Severance			—				698
Other			351				188
Total accrued expenses		$	5,203			$	7,027

X

- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

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X

- Definition

Tabular disclosure of the components of accrued liabilities.

+ References

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- Definition

Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name Accounting Standards Codification
-Section 55
-Paragraph 40
-SubTopic 30
-Topic 350
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482640/350-30-55-40

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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-Paragraph 40
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482640/350-30-55-40

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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482665/350-30-50-2

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- References

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