Note 8 - Leases - Lease Information and Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Lease liability	$ 1,048		$ 1,127
Right-of-use asset	$ 1,018		$ 1,096
Weighted average remaining lease term (in years) (Year)	4 years 2 months 19 days		4 years 4 months 20 days
Weighted average discount rate	3.28%		3.29%
Operating lease expense	$ 89	$ 92
Short-term lease expense	5	1
Total lease expense	94	93
Cash paid for amounts included in lease liabilities	95	94
Right-of-use assets obtained in exchange for operating lease liabilities commencing during the period	$ 0	$ 0