Note 4 - Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Cash, Cash Equivalents and Investments [Table Text Block]

	Amortized		Gross Unrealized					Estimated		Cash and Cash		Short-Term
	Cost		Gains		Losses			Fair Value		Equivalents		Investments
December 31, 2024
Cash at banks	$	8,740	$	—	$	—		$	8,740	$	8,740	$	—
Money market funds		16,489		—		—			16,489		16,489		—
U.S. Treasury securities		23,802		7		(4	)		23,805		—		23,805
Commercial paper		2,688		1		—			2,689		—		2,689
Total	$	51,719	$	8	$	(4	)	$	51,723	$	25,229	$	26,494

	Amortized		Gross Unrealized					Estimated		Cash and Cash		Short-Term
	Cost		Gains		Losses			Fair Value		Equivalents		Investments
December 31, 2023
Cash at banks	$	3,352	$	—	$	—		$	3,352	$	3,352	$	—
Money market funds		31,403		—		—			31,403		31,403		—
U.S. Treasury securities		4,959		—		(1	)		4,958		—		4,958
Total	$	39,714	$	—	$	(1	)	$	39,713	$	34,755	$	4,958

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

	December 31, 2024		December 31, 2023
Prepaid clinical and manufacturing expenses	$	1,998	$	984
Prepaid insurance		282		258
Prepaid rent		521		488
Other prepaid		1,449		752
Other current assets		318		333
Prepaid expenses and other current assets	$	4,568	$	2,815

Property, Plant and Equipment [Table Text Block]

	December 31, 2024			December 31, 2023
Laboratory equipment	$	13,806		$	13,448
Office and computer equipment		1,140			1,105
Leasehold improvements		4,107			3,985
Construction in progress		160			24
Total property and equipment		19,213			18,562
Less: accumulated depreciation		(10,508	)		(6,831	)
Property and equipment, net	$	8,705		$	11,731

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

	December 31, 2024			December 31, 2023
Developed technology	$	5,000		$	5,000
Intellectual property		80			80
Total cost		5,080			5,080
Less: accumulated amortization		(1,523	)		(791	)
Intangible assets, net	$	3,557		$	4,289

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

Year Ending December 31,	Amount
2025	$	732
2026		731
2027		731
2028		727
2029		636
Total	$	3,557

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

	December 31, 2024		December 31, 2023
Balance at beginning of period	$	—	$	—
Revenue recognized		—		—
Amounts collected or invoiced		65,400		—
Balance at end of period	$	65,400	$	—

Schedule of Accrued Liabilities [Table Text Block]

	December 31, 2024		December 31, 2023
Accrued compensation	$	5,087	$	4,576
Accrued clinical and manufacturing expenses		5,134		312
Accrued professional and consulting services		623		211
Other liabilities, current portion		534		535
Total	$	11,378	$	5,634