Fair Value Measurements (Estimated Fair Values of Financial Assets and Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial assets, Estimated Fair Value
Investment securities held to maturity	$ 5,865	$ 6,000
Fair Value, Inputs, Level 1 [Member] | Carrying Amount [Member]
Financial assets, Estimated Fair Value
Cash and cash equivalents	58,819	67,225
Fair Value, Inputs, Level 1 [Member] | Estimated Fair Value [Member]
Financial assets, Estimated Fair Value
Cash and cash equivalents	58,819	67,225
Fair Value, Inputs, Level 2 [Member] | Carrying Amount [Member]
Financial assets, Estimated Fair Value
Investment securities held to maturity	5,899	6,043
Restricted securities	5,292	6,476
Bank owned life insurance	3,736	3,726
Financial liabilities, Estimated Fair Value
Noninterest-bearing demand	345,151	330,466
Checking plus interest	246,945	239,809
Money market	236,214	232,613
Savings	148,416	148,723
Club	774	387
Brokered Deposits	22,079	22,084
Certificates of deposit, $100,000 or more	98,027	97,905
Other time	139,663	140,354
Short-term borrowings	30,724	60,812
Long-term borrowings	15,000	15,000
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value [Member]
Financial assets, Estimated Fair Value
Investment securities held to maturity	5,865	6,000
Restricted securities	5,292	6,476
Bank owned life insurance	3,736	3,726
Financial liabilities, Estimated Fair Value
Noninterest-bearing demand	345,151	330,466
Checking plus interest	246,945	239,809
Money market	236,214	232,613
Savings	148,416	148,723
Club	774	387
Brokered Deposits	22,062	22,075
Certificates of deposit, $100,000 or more	97,077	96,435
Other time	137,509	136,292
Short-term borrowings	30,724	60,812
Long-term borrowings	15,028	15,012
Fair Value, Inputs, Level 3 [Member] | Carrying Amount [Member]
Financial assets, Estimated Fair Value
Loans, net	1,201,298	1,185,012
Fair Value, Inputs, Level 3 [Member] | Estimated Fair Value [Member]
Financial assets, Estimated Fair Value
Loans, net	$ 1,179,711	$ 1,150,418