Loans and Allowance for Loan Losses - ALL Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 13,431	$ 8,704	$ 10,243	$ 8,275
Charged off loans	(75)	(94)	(161)	(545)
Recoveries of charge-offs	48	94	123	177
Provision (reallocation) charged to expense	2,850	393	6,049	1,190
Ending balance	16,254	9,097	16,254	9,097
Commercial Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,963	4,074	4,508	3,639
Charged off loans	0	0	0	0
Recoveries of charge-offs	3	22	5	24
Provision (reallocation) charged to expense	629	6	2,082	439
Ending balance	6,595	4,102	6,595	4,102
Consumer Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,301	1,949	2,576	1,789
Charged off loans	0	0	(2)	(2)
Recoveries of charge-offs	11	16	17	20
Provision (reallocation) charged to expense	1	224	722	382
Ending balance	3,313	2,189	3,313	2,189
Construction and Land Development [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,484	854	1,127	795
Charged off loans	0	0	0	0
Recoveries of charge-offs	0	2	2	4
Provision (reallocation) charged to expense	311	90	666	147
Ending balance	1,795	946	1,795	946
Commercial and Industrial [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,557	1,709	1,957	1,746
Charged off loans	(9)	(14)	(17)	(333)
Recoveries of charge-offs	6	41	49	53
Provision (reallocation) charged to expense	1,889	10	2,454	280
Ending balance	4,443	1,746	4,443	1,746
Consumer and Other [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	126	118	75	306
Charged off loans	(66)	(80)	(142)	(210)
Recoveries of charge-offs	28	13	50	76
Provision (reallocation) charged to expense	20	63	125	(58)
Ending balance	$ 108	$ 114	$ 108	$ 114

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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