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Note 7 - Leases (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

Schedule of Assets Under Finance Lease [Table Text Block]

		*March 31,*				*December 31,*
(in thousands)		*2024*				*2023*
Lab equipment		$	636			$	636
Less accumulated depreciation			(469	)			(449	)
Net		$	167			$	187

Finance and Operating Lease Liability, Maturity [Table Text Block]

(in thousands)		*Finance Leases*				*Operating Leases*
2024 (remainder)		$	7			$	789
2025			—				1,208
2026			—				1,236
2027			—				1,132
2028			—				1,093
2029			—				649
Thereafter			—				1,045
Total minimum lease payments			7				7,152
Less amount representing interest/discounting			—				(1,833	)
Present value of minimum lease payments			7				5,319
Less lease obligations, current portion			(7	)			(599	)
Lease obligations, net of current portion		$	—			$	4,720

Lease, Cost [Table Text Block]

		*Three Months Ended March 31,*
(in thousands)		*2024*				*2023*
Finance lease costs:
Amortization		$	27			$	20
Interest on lease liabilities			—				6
Operating lease costs			254				253
Variable lease costs			53				50
Total lease costs		$	334			$	329

Schedule of Cash Flow, Supplemental Disclosures, Leases [Table Text Block]

		*Three Months Ended March 31,*
(in thousands)		*2024*				*2023*
Operating cash flows from operating leases		$	(307	)		$	(303	)
Operating cash flows from finance leases		$	—			$	(6	)
Financing cash flows from finance leases		$	(19	)		$	(28	)