Fair Value Measurements (Estimated Fair Values of Financial Assets and Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financial assets, Estimated Fair Value
Investment securities held to maturity	$ 5,983	$ 6,391
Fair Value, Inputs, Level 1 [Member] | Carrying Amount [Member]
Financial assets, Estimated Fair Value
Cash and cash equivalents	48,777	31,820
Fair Value, Inputs, Level 1 [Member] | Estimated Fair Value [Member]
Financial assets, Estimated Fair Value
Cash and cash equivalents	48,777	31,820
Fair Value, Inputs, Level 2 [Member] | Carrying Amount [Member]
Financial assets, Estimated Fair Value
Investment securities held to maturity	6,037	6,247
Restricted securities	8,110	3,735
Bank owned life insurance	3,676	3,637
Financial liabilities, Estimated Fair Value
Noninterest-bearing demand	331,766	328,322
Checking plus interest	214,898	231,898
Money market	216,394	223,123
Savings	153,973	156,623
Club	1,535	398
Brokered Deposits	23,547
Certificates of deposit, $100,000 or more	96,498	107,343
Other time	143,225	155,074
Short-term borrowings	114,043	21,734
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value [Member]
Financial assets, Estimated Fair Value
Investment securities held to maturity	5,983	6,391
Restricted securities	8,110	3,735
Bank owned life insurance	3,676	3,637
Financial liabilities, Estimated Fair Value
Noninterest-bearing demand	331,766	328,322
Checking plus interest	214,898	231,898
Money market	216,394	223,123
Savings	153,973	156,623
Club	1,535	398
Brokered Deposits	23,519
Certificates of deposit, $100,000 or more	94,212	105,691
Other time	138,187	151,339
Short-term borrowings	114,043	21,734
Fair Value, Inputs, Level 3 [Member] | Carrying Amount [Member]
Financial assets, Estimated Fair Value
Loans, net	1,170,229	1,083,733
Fair Value, Inputs, Level 3 [Member] | Estimated Fair Value [Member]
Financial assets, Estimated Fair Value
Loans, net	$ 1,139,344	$ 1,072,951