Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Tax at federal income tax rate	$ 3,072	$ 2,648
Change resulting from:
Tax-exempt interest	(253)	(130)
Income in cash value of bank owned life insurance	(156)	(113)
Nondeductible merger expenses	0	39
Other	152	(46)
Provision for income taxes	$ 2,815	$ 2,398