Fair Value Measurements (Carrying Values And Estimated Fair Values Of Financial Instruments Segregated By The Level Of The Valuation Inputs) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Financial Assets:
Held to maturity securities, fair value	$ 10,887	$ 12,282
Accrued interest receivable	5,839	5,767
Derivative Assets	4,123	1,793
Financial Liabilities:
Accrued interest payable	969	867
Derivative instrument	4,123	1,793
Other borrowings	173,971	110,927
Carrying Values [Member] | Level 2 Inputs [Member]
Financial Assets:
Cash and cash equivalents	70,097	78,129
Held to maturity securities, fair value	10,474	11,797
Accrued interest receivable	5,839	5,767
Investments included in other assets	14,199	10,383
Financial Liabilities:
Deposits	1,947,924	1,884,105
Accrued interest payable	969	867
Other liabilities	9,945	10,314
Other borrowings	173,971	110,927
Subordinated debentures	46,393	51,548
Carrying Values [Member] | Level 3 Inputs [Member]
Financial Assets:
Total loans, net of allowance	1,851,660	1,753,323
Fair Values [Member]
Financial Liabilities:
Loan commitments	476,048	446,412
Letters of credit	7,002	6,563
Fair Values [Member] | Level 2 Inputs [Member]
Financial Assets:
Cash and cash equivalents	70,097	78,129
Held to maturity securities, fair value	10,887	12,282
Accrued interest receivable	5,839	5,767
Investments included in other assets	14,199	10,383
Financial Liabilities:
Deposits	1,884,101	1,780,954
Accrued interest payable	969	867
Other liabilities	9,945	10,314
Other borrowings	174,706	112,149
Subordinated debentures	46,393	51,548
Fair Values [Member] | Level 3 Inputs [Member]
Financial Assets:
Total loans, net of allowance	$ 1,831,853	$ 1,728,114