Fair Value Of Financial Instruments (Fair Value By Balance Sheet Grouping) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and due from banks $ 71,592 $ 71,290
Interest bearing deposits 13,236 11,778
Investment securities - AFS 239,440 223,273
Investment securities - HTM 4,318 4,347
Restricted Bank Stock 7,853 8,349
Loans, net 849,518 865,405
Accrued interest receivable 4,059 4,494
Deposits - non-maturity 574,093 593,224
Deposits - time deposits 372,857 392,155
Short-term borrowed funds 38,633 39,257
Long-term borrowed funds 190,311 190,531
Accrued interest payable 5,881 5,415
Financial Derivative 748 849
Off balance sheet financial instruments 0 0
Cash and due from banks, Carrying Amount 71,592 71,290
Interest bearing deposits in banks, Carrying Amount 13,236 11,778
Investment securities - AFS, Carrying Amount 239,440 223,273
Investment securities - held to maturity (at cost) 4,040 4,040
Restricted Bank stock, Carrying Amount 7,853 8,349
Loans, net, Carrying Amount 843,644 858,782
Accrued interest receivable, Carrying Amount 4,059 4,494
Deposits - non-maturity, Carrying Amount 611,585 593,224
Deposits - time deposits, Carrying Amount 364,215 383,660
Short-term borrowings 38,633 39,257
Long-term borrowings 182,720 182,735
Accrued interest payable, Carrying Amount 5,881 5,415
Financial derivative, Carrying Amount 748 849
Off-Balance Sheet Risks, Amount, Liability, Carrying Amount 0 0
Fair Value, Inputs, Level 1 [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and due from banks 71,592 71,290
Interest bearing deposits 13,236 11,778
Off balance sheet financial instruments 0 0
Fair Value, Inputs, Level 2 [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investment securities - AFS 225,642 211,831
Restricted Bank Stock 7,853 8,349
Accrued interest receivable 4,059 4,494
Deposits - non-maturity 574,093 593,224
Deposits - time deposits 372,857 392,155
Short-term borrowed funds 38,633 39,257
Long-term borrowed funds 190,311 190,531
Accrued interest payable 5,881 5,415
Fair Value, Inputs, Level 3 [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investment securities - AFS 13,798 11,442
Investment securities - HTM 4,318 4,347
Loans, net 849,518 865,405
Financial Derivative $ 748 $ 849