Note 9 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Operating lease right-of-use assets	$ 9,268		$ 9,268		$ 5,436
Operating lease liabilities	$ 9,643		$ 9,643		$ 5,751
Operating leases (Year)	12 years 1 month 6 days		12 years 1 month 6 days		7 years 3 months 18 days
Operating leases	4.47%		4.47%		3.90%
Operating lease cost	$ 500	$ 503	$ 1,404		$ 1,438
Variable lease cost	269	219	741		918
Short-term lease cost	54	46	158		128
Interest on lease liabilities	0	0	0		0
Amortization of right-of-use assets	0	0	0		0
Sublease income	(47)	(50)	(146)		(169)
Net lease cost	776	718	2,157		2,315
Cash paid for amounts included in the measurement of lease liabilities operating cash flows from operating leases	549	499	1,469		1,275
Right-of-use assets obtained in exchange for new operating lease liabilities, net	5,136	1,240	5,244	$ 1,938	1,938
Right-of-use assets obtained in exchange for new operating lease liabilities	$ (5,136)	$ (1,240)	$ (5,244)	$ (1,938)	$ (1,938)