Fair Value Measurements (Fair Value, by Balance Sheet Grouping) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest-bearing deposits in banks	$ 9,670,000	$ 4,153,000	$ 2,856,000
Investment securities available for sale, Fair Value	122,064,000	129,983,000	135,163,000
Investment securities held to maturity	74,338,000	92,082,000	94,667,000
Restricted investment in bank stocks	5,239,000	6,861,000	4,189,000
Carrying Amount [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and due from banks	14,338,000	13,963,000
Interest-bearing deposits in banks	9,670,000	4,153,000
Investment securities available for sale, Fair Value	122,064,000	129,983,000
Investment securities held to maturity	75,407,000	94,373,000
Loans held for sale	1,482,000	496,000
Loans, less allowance for loan losses	750,920,000	712,557,000
Accrued interest receivable	2,888,000	3,027,000
Restricted investment in bank stocks	5,239,000	6,861,000
Deposits	824,012,000	800,643,000
Short-term borrowings	53,824,000	49,052,000
Long-term borrowings	69,505,000	82,703,000
Accrued interest payable	380,000	681,000
Off-balance sheet financial instruments	0	0
Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and due from banks	14,338,000	13,963,000
Interest-bearing deposits in banks	9,670,000	4,153,000
Investment securities available for sale, Fair Value	122,064,000	129,983,000
Investment securities held to maturity	74,338,000	92,082,000
Loans held for sale	1,482,000	496,000
Loans, less allowance for loan losses	762,293,000	724,937,000
Accrued interest receivable	2,888,000	3,027,000
Restricted investment in bank stocks	5,239,000	6,861,000
Deposits	824,325,000	801,063,000
Short-term borrowings	53,824,000	49,052,000
Long-term borrowings	70,943,000	84,558,000
Accrued interest payable	380,000	681,000
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and due from banks	6,361,000	7,755,000
Interest-bearing deposits in banks	9,670,000	4,153,000
Investment securities available for sale, Fair Value	1,759,000	1,905,000
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and due from banks	7,977,000	6,208,000
Investment securities available for sale, Fair Value	120,305,000	128,078,000
Investment securities held to maturity	74,338,000	92,082,000
Loans held for sale	1,482,000	496,000
Accrued interest receivable	2,888,000	3,027,000
Restricted investment in bank stocks	5,239,000	6,861,000
Deposits	824,325,000	801,063,000
Short-term borrowings	53,824,000	49,052,000
Long-term borrowings	70,943,000	84,558,000
Accrued interest payable	380,000	681,000
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, less allowance for loan losses	$ 762,293,000	$ 724,937,000