Note 7 - Commitments and Contingencies (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2026

Dec. 31, 2025

Notes Tables

Summary of Finance and Operating Right-of-Use Assets [Table Text Block]

		March 31, 2026				December 31, 2025
Finance leases:
Office equipment		$	141			$	152
Finance lease right-of-use assets, net		$	141			$	152

Operating Leases:
Facilities		$	284			$	363
Operating lease right-of-use assets, net		$	284			$	363

		*December 31, 2025*				*December 31, 2024*
Finance leases:
Office equipment		$	152			$	177
Finance lease right-of-use assets, net		$	152			$	177

Operating Leases:
Facilities		$	363			$	653
Office equipment			-				47
Operating lease right-of-use assets, net		$	363			$	700

Summary of Future Minimum Operating and Finance Lease Payments [Table Text Block]

		*Operating Lease*				*Finance Leases*
2026 (nine months remaining)		$	310			$	63
2027			34				32
Undiscounted total			344				95
Less: imputed interest			(15	)			(7	)
Present value of future minimum payments			329				88
Current portion of lease liability			(329	)			(79	)
Lease liability, net of current portion		$	-			$	9

		December 31, 2025
		*Operating Leases*				*Finance Lease*
2026		$	412			$	88
2027			34				32
Undiscounted total			446				120
Less: imputed interest			(26	)			(13	)
Present value of future minimum payments			420				107
Current portion of lease liability			(386	)			(77	)
Lease liability, net of current portion		$	34			$	30

Lease, Cost [Table Text Block]

		*Three Months Ended March 31,*
		*2026*				*2025*
Operating lease cost		$	90			$	104
Short-term lease cost			5				9
Variable lease cost			4				17
Total operating lease cost		$	99			$	130

		*Year Ended December 31,*
		*2025*				*2024*
Operating lease cost		$	359			$	384
Short-term lease cost			53				11
Variable lease cost			15				29
Total operating lease cost		$	427			$	424