Revenue Recognition - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Gains on sales of loans	$ 428	$ 300	$ 799	$ 546
Other Income
Gains on customer swap transactions	656	527	855	859
Title insurance income	29	73	119	122
Other income	67	58	128	155
Total	752	658	1,102	1,136
Revenue not from contracts with customers	730	803	1,753	1,533
TOTAL NONINTEREST INCOME	6,389	5,709	12,112	11,043
Products and services transferred at a point in time
Other Income
Revenue from contract with customer	5,641	4,888	10,322	9,473
Products and services transferred over time
Other Income
Revenue from contract with customer	18	18	37	37
Deposit Related Fees and Charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,755	2,545	5,328	5,156
Debit card interchange income
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,412	1,277	2,630	2,395
Overdraft charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	981	900	1,977	2,009
ATM service charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	216	217	400	407
Demand deposit fees and charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	122	121	265	279
Savings service charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	24	30	56	66
Commissions and Fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,724	1,403	3,130	2,672
Loan fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	531	363	879	685
Wire transfer charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	305	274	572	522
Investment services income
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	427	311	779	539
Merchant fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	200	174	384	390
Commissions from sales of checks
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	111	112	214	220
Safe deposit income
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	90	104	181	188
Other income
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 60	$ 65	$ 121	$ 128

Bank Owned Title Insurance Income

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Noninterest Income, Other, Revenue from Contracts with Customers

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Revenue Not From Contract With Customer

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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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