Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Loans and Allowance for Loan Losses, Summary of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Summary of loans [Abstract]
Gross loans	$ 840,205		$ 708,668
Less allowance for loan losses	(9,878)	$ (8,513)	(7,846)	$ (7,836)	$ (7,835)	$ (7,832)
Less deferred loan fees	(2,262)		(1,364)
Net loans	828,065		699,458
PPP Loans [Member]
Summary of loans [Abstract]
Gross loans	64,000
Construction & Development [Member]
Summary of loans [Abstract]
Gross loans	92,380		70,628
Less allowance for loan losses	(1,086)	(944)	(782)	(1,031)	(1,290)	(1,136)
1 - 4 Family Real Estate [Member]
Summary of loans [Abstract]
Gross loans	29,675		34,160
Less allowance for loan losses	(349)	(376)	(378)	(448)	(452)	(433)
Commercial Real Estate - Other [Member]
Summary of loans [Abstract]
Gross loans	285,609		273,278
Less allowance for loan losses	(3,358)	(3,032)	(3,025)	(2,329)	(2,087)	(2,035)
Commercial Real Estate [Member]
Summary of loans [Abstract]
Gross loans	407,664		378,066
Commercial & Industrial [Member]
Summary of loans [Abstract]
Gross loans	372,554		260,762
Less allowance for loan losses	(4,380)	(3,495)	(2,887)	(3,171)	(3,068)	(3,231)
Commercial & Industrial [Member] \| PPP Loans [Member]
Summary of loans [Abstract]
Gross loans	64,000
Agricultural [Member]
Summary of loans [Abstract]
Gross loans	49,274		57,945
Less allowance for loan losses	(579)	(551)	(642)	(695)	(760)	(818)
Consumer [Member]
Summary of loans [Abstract]
Gross loans	10,713		11,895
Less allowance for loan losses	$ (126)	$ (115)	$ (132)	$ (162)	$ (178)	$ (179)