Note 13 - Fair Value - Assets Measured on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - Impaired Loans [Member] - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Assets, fair value	$ 1,309	$ 896
Fair Value, Inputs, Level 1 [Member]
Assets, fair value	0	0
Fair Value, Inputs, Level 2 [Member]
Assets, fair value	0	0
Fair Value, Inputs, Level 3 [Member]
Assets, fair value	$ 1,309	$ 896