Note 10 - Leases - Schedule of Lease-related Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets [Abstract]
Operating Lease, Right-of-Use Asset	$ 74	$ 92
Liabilities, Current [Abstract]
Accrued Liabilities, Current	$ 8,017	9,013
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Operating lease right-of-use assets
Operating lease right-of-use assets	$ 74	$ 92
Liabilities
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities, Current
Operating lease liabilities, current	$ 87