Revenue Recognition - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Gains on sales of loans	$ 486	$ 484	$ 1,285	$ 1,030
Other Income
Gains on customer swap transactions	730	319	1,585	1,178
Title insurance income	9	27	128	149
Other income	627	48	755	203
Total	1,366	394	2,468	1,530
Revenue not from contracts with customers	457	737	2,210	2,270
Total Noninterest Income	6,700	5,639	18,812	16,682
Products and services transferred at a point in time
Other Income
Revenue from contract with customer	6,224	4,883	16,546	14,356
Products and services transferred over time
Other Income
Revenue from contract with customer	19	19	56	56
Deposit Related Fees and Charges:
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,851	2,614	8,179	7,770
Debit card interchange income
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,429	1,280	4,059	3,675
Overdraft charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,047	966	3,024	2,975
ATM service charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	226	220	626	627
Demand deposit fees and charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	124	119	389	398
Savings service charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	25	29	81	95
Commissions and Fees:
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,540	1,410	4,670	4,082
Loan fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	303	267	1,182	952
Wire transfer charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	316	291	888	813
Investment services income
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	474	378	1,253	917
Merchant fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	202	199	586	589
Commissions from sales of checks
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	85	106	299	326
Safe deposit income
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	94	92	275	280
Other income
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 66	$ 77	$ 187	$ 205

Bank Owned Title Insurance Income

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Noninterest Income, Other, Revenue from Contracts with Customers

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The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.

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The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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Amount of revenue earned, classified as other, excluding interest income.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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