Fair Values Fair Value By Balance Sheet Grouping (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	$ 46,295	$ 49,980	$ 48,832	$ 43,736
Available-for-sale Securities	366,139	457,606
Held-to-Maturity Securities	302,024	299,261
Held-to-maturity Securities, at Fair Value	308,566	302,305
Federal Home Loan Bank and Federal Reserve Bank Stock	4,851	6,281
Net Loans	1,397,698	1,252,038
Deposits	1,902,948	1,842,330
Federal Home Loan Bank Term Advances	10,000	20,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	46,295	49,980
Available-for-sale Securities	366,139	457,606
Held-to-Maturity Securities	302,024	299,261
Federal Home Loan Bank and Federal Reserve Bank Stock	4,851	6,281
Net Loans	1,397,698	1,252,038
Accrued Interest Receivable	5,834	5,745
Deposits	1,902,948	1,842,330
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	19,421	11,777
Federal Home Loan Bank Term Advances	51,000	73,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000
Accrued Interest Payable	274	439
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	46,295	49,980
Available-for-sale Securities	366,139	457,606
Held-to-maturity Securities, at Fair Value	308,566	302,305
Federal Home Loan Bank Stock and Federal Reserve Bank Stock, Fair Value Disclosure	4,851	6,281
Net Loans, Fair Value Disclosure	1,405,454	1,266,020
Accrued Interest Receivable, Fair Value Disclosure	5,834	5,745
Deposits, Fair Value Disclosure	1,899,682	1,839,613
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase, Fair Value Disclosure	19,421	11,777
Federal Home Loan Bank Term Advances, Fair Value Disclosure	51,258	74,629
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts, Fair Value Disclosure	20,000	20,000
Accrued Interest Payable, Fair Value Disclosure	274	439
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	46,295	49,980
Available-for-sale Securities	0	0
Held-to-maturity Securities, at Fair Value	0	0
Federal Home Loan Bank Stock and Federal Reserve Bank Stock, Fair Value Disclosure	4,851	6,281
Net Loans, Fair Value Disclosure	0	0
Accrued Interest Receivable, Fair Value Disclosure	5,834	5,745
Deposits, Fair Value Disclosure	1,697,105	1,595,103
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase, Fair Value Disclosure	19,421	11,777
Federal Home Loan Bank Term Advances, Fair Value Disclosure	41,000	53,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts, Fair Value Disclosure	0	0
Accrued Interest Payable, Fair Value Disclosure	274	439
Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Available-for-sale Securities	366,139	457,606
Held-to-maturity Securities, at Fair Value	308,566	302,305
Federal Home Loan Bank Stock and Federal Reserve Bank Stock, Fair Value Disclosure	0	0
Net Loans, Fair Value Disclosure	0	0
Accrued Interest Receivable, Fair Value Disclosure	0	0
Deposits, Fair Value Disclosure	202,577	244,510
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase, Fair Value Disclosure	0	0
Federal Home Loan Bank Term Advances, Fair Value Disclosure	10,258	21,629
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts, Fair Value Disclosure	20,000	20,000
Accrued Interest Payable, Fair Value Disclosure	0	0
Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Available-for-sale Securities	0	0
Held-to-maturity Securities, at Fair Value	0	0
Federal Home Loan Bank Stock and Federal Reserve Bank Stock, Fair Value Disclosure	0	0
Net Loans, Fair Value Disclosure	1,405,454	1,266,020
Accrued Interest Receivable, Fair Value Disclosure	0	0
Deposits, Fair Value Disclosure	0	0
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase, Fair Value Disclosure	0	0
Federal Home Loan Bank Term Advances, Fair Value Disclosure	0	0
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts, Fair Value Disclosure	0	0
Accrued Interest Payable, Fair Value Disclosure	$ 0	$ 0