Note 6 - Credit Facility, Term Loans and Warrants (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

Schedule of Debt [Table Text Block]

	December 31, 2023			March 31, 2024
MidCap Credit Facility	$	11,515		$	9,815
Less: deferred debt issuance costs		(226	)		(265	)
Less: discount associated with issuance of warrants		(191	)		(154	)
Total MidCap Credit Facility	$	11,098		$	9,396

Interest Income and Interest Expense Disclosure [Table Text Block]

	Three Months Ended March 31,
	2023			2024
Interest expense	$	596		$	393
Interest income		(225	)		(70	)
Total interest expense, net	$	371		$	323