Fair Value (Carrying Amounts and Estimated Fair Values of Company's Financial Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Financial Assets:
Securities Held-to-Maturity	$ 268	$ 346
FHLB Stock and Other Restricted Stock	8,340	8,340
Loans, Net	1,178,013	1,189,346
Financial Liabilities:
Time Deposits	(332,712)	(329,183)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial Assets:
Cash and Short-term Investments	22,045	41,624
Securities Held-to-Maturity	0	0
Loans, Net	0	0
Accrued Interest Receivable	0	0
Financial Liabilities:
Demand, Savings, and Money Market Deposits	(1,327,197)	(1,311,748)
Time Deposits	0	0
Short-term Borrowings	0	0
Long-term Debt	0	0
Accrued Interest Payable	0	0
Significant Other Observable Inputs (Level 2) [Member]
Financial Assets:
Cash and Short-term Investments	9,620	10,170
Securities Held-to-Maturity	271	351
Loans, Net	0	0
Accrued Interest Receivable	1,911	1,893
Financial Liabilities:
Demand, Savings, and Money Market Deposits	0	0
Time Deposits	(336,276)	(333,170)
Short-term Borrowings	(26,266)	(71,534)
Long-term Debt	(65,373)	(66,892)
Accrued Interest Payable	(685)	(829)
Significant Unobservable Inputs (Level 3) [Member]
Financial Assets:
Cash and Short-term Investments	0	0
Securities Held-to-Maturity	0	0
Loans, Net	1,183,445	1,199,566
Accrued Interest Receivable	5,417	5,526
Financial Liabilities:
Demand, Savings, and Money Market Deposits	0	0
Time Deposits	0	0
Short-term Borrowings	0	0
Long-term Debt	(23,986)	(28,872)
Accrued Interest Payable	(127)	(446)
Commitments to Extend Credit [Member]
Unrecognized Financial Instruments:
Financial Instruments with Off-Balance Sheet Risk, carrying value	0	0
Financial Instruments with Off-Balance Sheet Risk, fair value	0	0
Standby Letters of Credit [Member]
Unrecognized Financial Instruments:
Financial Instruments with Off-Balance Sheet Risk, carrying value	0	0
Financial Instruments with Off-Balance Sheet Risk, fair value	0	0
Commitments to Sell Loans [Member]
Unrecognized Financial Instruments:
Financial Instruments with Off-Balance Sheet Risk, carrying value	0	0
Financial Instruments with Off-Balance Sheet Risk, fair value	0	0
Carrying Value [Member]
Financial Assets:
Cash and Short-term Investments	31,665	51,794
Securities Held-to-Maturity	268	346
FHLB Stock and Other Restricted Stock	8,340	8,340
Loans, Net	1,174,854	1,186,483
Accrued Interest Receivable	7,328	7,419
Financial Liabilities:
Demand, Savings, and Money Market Deposits	(1,327,197)	(1,311,748)
Time Deposits	(332,712)	(329,183)
Short-term Borrowings	(26,266)	(71,534)
Long-term Debt	(87,957)	(89,472)
Accrued Interest Payable	(812)	(1,275)
Fair Value [Member]
Financial Assets:
Cash and Short-term Investments	31,665	51,794
Securities Held-to-Maturity	271	351
Loans, Net	1,183,445	1,199,566
Accrued Interest Receivable	7,328	7,419
Financial Liabilities:
Demand, Savings, and Money Market Deposits	(1,327,197)	(1,311,748)
Time Deposits	(336,276)	(333,170)
Short-term Borrowings	(26,266)	(71,534)
Long-term Debt	(89,359)	(95,764)
Accrued Interest Payable	$ (812)	$ (1,275)