Note 12 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets (liabilities):
Deferred compensation plans	$ 84	$ 95
Allowance for loan losses	1,454	1,544
Unrealized loss on equity securities	10	87
Restricted stock	46	57
Interest on nonaccrual loans	157	161
Deferred income	280	0
Other	10	11
Deferred tax assets	2,041	1,955
Unrealized gain on securities available for sale	(382)	(1,971)
Depreciation	(963)	(994)
Deferred loan fees and costs	(268)	(247)
FHLB stock dividends	(37)	(37)
Prepaid expenses	(337)	(346)
Acquisition purchase accounting adjustments	(360)	(400)
Other	(23)	(9)
Deferred tax liabilities	(2,370)	(4,004)
Net deferred tax liability	$ (329)	$ (2,049)