Investment Securities (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011	Dec. 31, 2010
Schedule of Available-for-sale Securities [Line Items]
Total investment securities, amortized cost basis	$ 111,151,000		$ 111,151,000		$ 98,606,000
Gross Unrealized Gains	3,690,000		3,690,000		2,485,000
Gross Unrealized Losses	(529,000)		(529,000)		(696,000)
Estimated Fair Value	114,312,000		114,312,000		100,395,000
Available-for-sale securities, debt maturities, amortized cost
Due in one year or less, amortized cost	7,294,000		7,294,000
Due after one year through five years, amortized cost	22,421,000		22,421,000
Due after five years through ten years, amortized cost	7,042,000		7,042,000
Due after ten years, amortized cost	18,455,000		18,455,000
Mortgage-backed securities amortized cost	53,143,000		53,143,000
Totals, amortized cost	108,355,000		108,355,000
Available-for-sale securities, debt maturities, Estimated Fair Value
Due in one year or less, fair value	7,329,000		7,329,000
Due after one year through five years, fair value	22,887,000		22,887,000
Due after five years through ten years, fair value	7,478,000		7,478,000
Due after ten years, fair value	18,521,000		18,521,000
Mortgage-backed securities fair value disclosure	54,921,000		54,921,000
Available-for-sale securities, debt maturities, fair value, totals	111,136,000		111,136,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Less than twelve months Unrealized Losses	(41,000)		(41,000)		(136,000)
Twelve months or more Unrealized Losses	(488,000)		(488,000)		(560,000)
Total Unrealized Losses	(529,000)		(529,000)		(696,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than twelve Fair Value	5,128,000		5,128,000		15,797,000
Twelve months or more Fair Value	1,481,000		1,481,000		1,413,000
Total Fair Value	6,609,000		6,609,000		17,210,000
Number of securities in unrealized loss positions, less than twelve months	11		11		22
Number of securities in unrealized loss positions, twelve months or more	2		2		3
Number of securities in unrealized loss positions	13		13		25
Months of unrealized loss positions (in months)			12
Number of securities rated below Baa1 or better	2		2
Unrealized losses	(1,300)		(1,300)
Final maturity of each security			15 years
Minimum term of fixed rate residential mortgage carried in loan portfolio ( in years)			15 years
Maximum term of fixed rate residential mortgage carried in loan portfolio (in years)			30 years
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Beginning balance - January 1	0	0	0	0	0	875,000
Reductions for securities sold			0	(875,000)
Ending balance - September 30	0	0	0	0	0	875,000
Gain (Loss) on Sale of Investments [Abstract]
Realized gains	30,000	469,000	191,000	796,000
Realized losses	(12,000)	0	(12,000)	(5,000)
Total	18,000	469,000	179,000	791,000
Securities Pledged To Collateralize Deposit	39,600,000		39,600,000		43,100,000
Securities Pledged To Collateralize Borrowing	38,400,000		38,400,000		21,800,000
Borrowings Secured By Collateral	5,000,000		5,000,000		5,000,000
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, debt securities	108,355,000		108,355,000		95,789,000
Gross Unrealized Gains	3,309,000		3,309,000		2,292,000
Gross Unrealized Losses	(528,000)		(528,000)		(695,000)
Estimated Fair Value	111,136,000		111,136,000		97,386,000
US Treasury, agencies and GSEs [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, debt securities	5,176,000		5,176,000		5,025,000
Gross Unrealized Gains	26,000		26,000		48,000
Gross Unrealized Losses	0		0		0
Estimated Fair Value	5,202,000		5,202,000		5,073,000
State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, debt securities	25,994,000		25,994,000		19,508,000
Gross Unrealized Gains	1,122,000		1,122,000		797,000
Gross Unrealized Losses	(2,000)		(2,000)		(1,000)
Estimated Fair Value	27,114,000		27,114,000		20,304,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Less than twelve months Unrealized Losses	(2,000)		(2,000)		(1,000)
Twelve months or more Unrealized Losses	0		0		0
Total Unrealized Losses	(2,000)		(2,000)		(1,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than twelve Fair Value	1,475,000		1,475,000		412,000
Twelve months or more Fair Value	0		0		0
Total Fair Value	1,475,000		1,475,000		412,000
Number of securities in unrealized loss positions, less than twelve months	4		4		1
Number of securities in unrealized loss positions, twelve months or more	0		0		0
Number of securities in unrealized loss positions	4		4		1
Corporate [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, debt securities	24,042,000		24,042,000		21,086,000
Gross Unrealized Gains	382,000		382,000		38,000
Gross Unrealized Losses	(525,000)		(525,000)		(690,000)
Estimated Fair Value	23,899,000		23,899,000		20,434,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Less than twelve months Unrealized Losses	(37,000)		(37,000)		(131,000)
Twelve months or more Unrealized Losses	(488,000)		(488,000)		(559,000)
Total Unrealized Losses	(525,000)		(525,000)		(690,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than twelve Fair Value	2,633,000		2,633,000		13,489,000
Twelve months or more Fair Value	1,481,000		1,481,000		1,410,000
Total Fair Value	4,114,000		4,114,000		14,899,000
Number of securities in unrealized loss positions, less than twelve months	4		4		19
Number of securities in unrealized loss positions, twelve months or more	2		2		2
Number of securities in unrealized loss positions	6		6		21
Residential mortgage-backed - US agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, debt securities	52,797,000		52,797,000		49,665,000
Gross Unrealized Gains	1,768,000		1,768,000		1,395,000
Gross Unrealized Losses	(1,000)		(1,000)		(4,000)
Estimated Fair Value	54,564,000		54,564,000		51,056,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Less than twelve months Unrealized Losses	(1,000)		(1,000)		(4,000)
Twelve months or more Unrealized Losses	0		0		0
Total Unrealized Losses	(1,000)		(1,000)		(4,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than twelve Fair Value	1,018,000		1,018,000		1,896,000
Twelve months or more Fair Value	0		0		0
Total Fair Value	1,018,000		1,018,000		1,896,000
Number of securities in unrealized loss positions, less than twelve months	2		2		2
Number of securities in unrealized loss positions, twelve months or more	0		0		0
Number of securities in unrealized loss positions	2		2		2
Residential mortgage-backed-Private label [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, debt securities	346,000		346,000		505,000
Gross Unrealized Gains	11,000		11,000		14,000
Gross Unrealized Losses	0		0		0
Estimated Fair Value	357,000		357,000		519,000
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, equity securities	2,796,000		2,796,000		2,817,000
Gross Unrealized Gains	381,000		381,000		193,000
Gross Unrealized Losses	(1,000)		(1,000)		(1,000)
Estimated Fair Value	3,176,000		3,176,000		3,009,000
Mutual Funds Ultra Short Mortgage Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, equity securities	1,286,000		1,286,000		1,286,000
Gross Unrealized Gains	14,000		14,000		12,000
Gross Unrealized Losses	0		0		0
Estimated Fair Value	1,300,000		1,300,000		1,298,000
Mutual Funds Large Cap Equity Fund [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, equity securities	905,000		905,000		905,000
Gross Unrealized Gains	243,000		243,000		119,000
Gross Unrealized Losses	0		0		0
Estimated Fair Value	1,148,000		1,148,000		1,024,000
Other Mutual Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, equity securities	183,000		183,000		183,000
Gross Unrealized Gains	114,000		114,000		60,000
Gross Unrealized Losses	0		0		0
Estimated Fair Value	297,000		297,000		243,000
Mutual funds Common Stock Financial Services Industry [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost, equity securities	422,000		422,000		443,000
Gross Unrealized Gains	10,000		10,000		2,000
Gross Unrealized Losses	(1,000)		(1,000)		(1,000)
Estimated Fair Value	431,000		431,000		444,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Less than twelve months Unrealized Losses	(1,000)		(1,000)		0
Twelve months or more Unrealized Losses	0		0		(1,000)
Total Unrealized Losses	(1,000)		(1,000)		(1,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than twelve Fair Value	2,000		2,000		0
Twelve months or more Fair Value	0		0		3,000
Total Fair Value	$ 2,000		$ 2,000		$ 3,000
Number of securities in unrealized loss positions, less than twelve months	1		1		0
Number of securities in unrealized loss positions, twelve months or more	0		0		1
Number of securities in unrealized loss positions	1		1		1