Loans and Allowance for Loan Losses - ALL Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 10,243	$ 8,275
Charged off loans	(86)	(450)
Recoveries of charge-offs	74	82
Provision (reallocation) charged to expense	3,200	797
Ending balance	13,431	8,704
Commercial Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,508	3,639
Charged off loans	0	0
Recoveries of charge-offs	2	2
Provision (reallocation) charged to expense	1,453	433
Ending balance	5,963	4,074
Consumer Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,576	1,789
Charged off loans	(2)	(2)
Recoveries of charge-offs	6	4
Provision (reallocation) charged to expense	721	158
Ending balance	3,301	1,949
Construction and Land Development [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,127	795
Charged off loans	0	0
Recoveries of charge-offs	2	2
Provision (reallocation) charged to expense	355	57
Ending balance	1,484	854
Commercial and Industrial [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,957	1,746
Charged off loans	(8)	(318)
Recoveries of charge-offs	42	12
Provision (reallocation) charged to expense	566	269
Ending balance	2,557	1,709
Consumer and Other [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	75	306
Charged off loans	(76)	(130)
Recoveries of charge-offs	22	62
Provision (reallocation) charged to expense	105	(120)
Ending balance	$ 126	$ 118

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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- Definition

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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