Note 7 - Credit Facility and Warrants (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Schedule of Debt [Table Text Block]

	September 30, 2025			December 31, 2024
MidCap Credit Facility	$	6,480		$	7,252
Less: deferred debt issuance costs		(168	)		(192	)
Less: discount associated with issuance of warrants		(69	)		(112	)
Total MidCap Credit Facility	$	6,243		$	6,948

Interest Income and Interest Expense Disclosure [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2025			2024			2025			2024
Interest expense	$	275		$	272		$	749		$	961
Interest income		(16	)		(83	)		(93	)		(220	)
Total interest expense, net	$	259		$	189		$	656		$	741