Note 7 - Credit Facility and Warrants (Tables)

3 Months Ended

Mar. 31, 2025

Notes Tables

Schedule of Debt [Table Text Block]

	December 31, 2024			March 31, 2025
MidCap Credit Facility	$	7,252		$	7,778
Less: deferred debt issuance costs		(192	)		(169	)
Less: discount associated with issuance of warrants		(112	)		(98	)
Total MidCap Credit Facility	$	6,948		$	7,511

Interest Income and Interest Expense Disclosure [Table Text Block]

	Three Months Ended March 31,
	2024			2025
Interest expense	$	393		$	221
Interest income		(70	)		(46	)
Total interest expense, net	$	323		$	175