Income Taxes, Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets [Abstract]
Allowance for loan losses	$ 909	$ 897
Accrued liabilities	139	137
State income taxes	58	36
Stock compensation	310	202
Net operating loss carryforward	3,437	3,614
Non-accrual loan interest	1	1
Partnership investment	188	173
General business credit	1,969	1,859
Alternative minimum tax credit	34	94
Other	40	34
Total deferred tax assets	7,085	7,047
Deferred tax liabilities [Abstract]
Section 481 Adjustments to bad debts	(334)	(660)
Deferred loan fees/costs	(651)	(797)
Basis difference on fixed assets	(18)	(15)
Net unrealized appreciation on available-for-sale securities	(138)	(59)
FHLB stock dividends	(266)	(266)
Mortgage servicing rights	(1)	(3)
Prepaid expenses	(44)	(27)
Total deferred tax liabilities	(1,452)	(1,827)
Net deferred tax assets	5,633	5,220
Valuation allowance	$ 0	$ 0