Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Components of income tax expense [Abstract]
Current income tax expense	$ 443	$ 20
Deferred income tax benefit	(164)	(117)
Reported income tax expense (benefit)	279	(97)
Reconciliation of "expected" Federal income tax expense [Abstract]
Expected tax (benefit) expense	1,092	(43)
Interest expense on tax-exempt assets	18	23
Low-income housing tax credits	(496)	(412)
Tax-exempt interest, net	(303)	(628)
Bank-owned life insurance	(164)	(263)
Impact of Tax Act	0	1,221
Other, net	132	5
Reported income tax expense (benefit)	$ 279	$ (97)
Effective Income Tax Rate Reconciliation [Abstract]
Expected tax expense rate	21.00%	35.00%
Effective tax rate	5.40%	(77.00%)
Additional income tax expense due to change in tax rate		$ 1,200
Deferred tax assets [Abstract]
Allowance for loan losses	$ 2,123	1,984
Nonaccrual loans	112	82
Acquisition accounting	120	0
Other real estate owned	21	0
Net operating losses	712	0
Investments in pass-through entities	113	162
Bank owned life insurance benefit	59	55
Securities available-for-sale	573	225
Stock awards	55	0
Alternative minimum tax	292	1,344
Deferred compensation	236	139
Other	63	19
Total	4,479	4,010
Deferred tax liabilities [Abstract]
Premises and equipment	389	404
Acquisition accounting	86	0
Deferred loan fees and costs	181	295
Total	656	699
Net deferred tax assets	$ 3,823	$ 3,311