Revenue Recognition - Noninterest Income by Major Source (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Noninterest income
Brokerage fees	$ 90	$ 41
Bank-owned life insurance	93	89
Other service charges, commissions and other income	148	91
Gain on sale/call of securities available for sale	79	535
Gain on sale of mortgage loans held for sale, net		6
Total noninterest income	1,480	1,863
Trust and Estate Fees [Member]
Noninterest income
Total noninterest income	416	372
Service Charges on Deposit Accounts [Member]
Noninterest income
Total noninterest income	383	444
Intercharge Fee Income, Net [Member]
Noninterest income
Total noninterest income	$ 271	$ 285

Other service charges commissions and other income.

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Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

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Amount of commission revenue from buying and selling securities on behalf of customers.

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Amount of unrealized and realized gain (loss) on investment in debt and equity securities.

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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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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, 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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