Securities (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Securities available for sale [Abstract]
Amortized Cost	$ 340,619,000	$ 320,170,000
Unrealized Gains	7,317,000	15,201,000
Unrealized Losses	1,812,000	125,000
Estimated Fair Value	346,124,000	335,246,000
Available-for-sale, Amortized Cost [Abstract]
Due in one year or less	7,737,000
Due after one year through five years	140,272,000
Due after five years through ten years	98,991,000
Due after ten years	23,451,000
Total	340,619,000
Available for Sale, Estimated Fair Value [Abstract]
Due in one year or less	7,782,000
Due after one year through five years	142,014,000
Due after five years through ten years	101,691,000
Due after ten years	23,926,000
Total	346,124,000
Gross realized gains and losses [Abstract]
Realized gains	229,000	193,000	47,000
Realized losses	(37,000)	(35,000)	(48,000)
Other-than-temporary impairment	0	0	0
Securities pledged to secure public deposits, repurchase agreements and other	154,946,000	127,599,000
FHLB letters of credit used as additional collateral amount	72,000,000	72,000,000
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	106,041,000	26,183,000
Unrealized Loss	1,812,000	125,000
Less than 12 Months, Estimated Fair Value	97,707,000	22,771,000
Less than 12 Months, Unrealized Loss	1,689,000	61,000
12 Months or More, Estimated Fair Value	8,334,000	3,412,000
12 Months or More, Unrealized Loss	123,000	64,000
Investment in FHLB stock	2,000,000
Other-than-temporary impairment losses recognized	0	0	0
Federal agencies and GSEs [Member]
Securities available for sale [Abstract]
Amortized Cost	66,241,000	42,458,000
Unrealized Gains	126,000	306,000
Unrealized Losses	486,000	5,000
Estimated Fair Value	65,881,000	42,759,000
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	41,586,000	5,501,000
Unrealized Loss	486,000	5,000
Less than 12 Months, Estimated Fair Value	41,586,000	5,501,000
Less than 12 Months, Unrealized Loss	486,000	5,000
12 Months or More, Estimated Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Mortgage-backed and CMOs [Member]
Securities available for sale [Abstract]
Amortized Cost	69,168,000	81,585,000
Unrealized Gains	1,085,000	1,829,000
Unrealized Losses	645,000	106,000
Estimated Fair Value	69,608,000	83,308,000
Available-for-sale, Amortized Cost [Abstract]
Mortgage-backed and CMOs	69,168,000
Available for Sale, Estimated Fair Value [Abstract]
Mortgage-backed and CMOs	69,608,000
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	23,916,000	16,353,000
Unrealized Loss	645,000	106,000
Less than 12 Months, Estimated Fair Value	19,042,000	12,941,000
Less than 12 Months, Unrealized Loss	577,000	42,000
12 Months or More, Estimated Fair Value	4,874,000	3,412,000
12 Months or More, Unrealized Loss	68,000	64,000
State and municipal [Member]
Securities available for sale [Abstract]
Amortized Cost	193,251,000	189,810,000
Unrealized Gains	5,999,000	12,935,000
Unrealized Losses	517,000	14,000
Estimated Fair Value	198,733,000	202,731,000
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	33,192,000	4,329,000
Unrealized Loss	517,000	14,000
Less than 12 Months, Estimated Fair Value	29,732,000	4,329,000
Less than 12 Months, Unrealized Loss	462,000	14,000
12 Months or More, Estimated Fair Value	3,460,000	0
12 Months or More, Unrealized Loss	55,000	0
Number of available for sale securities in unrealized loss positions	34
Corporate [Member]
Securities available for sale [Abstract]
Amortized Cost	10,959,000	6,317,000
Unrealized Gains	4,000	131,000
Unrealized Losses	164,000	0
Estimated Fair Value	10,799,000	6,448,000
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	7,347,000	0
Unrealized Loss	164,000	0
Less than 12 Months, Estimated Fair Value	7,347,000	0
Less than 12 Months, Unrealized Loss	164,000	0
12 Months or More, Estimated Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Number of available for sale securities in unrealized loss positions	7
Equity Securities [Member]
Securities available for sale [Abstract]
Amortized Cost	1,000,000	0
Unrealized Gains	103,000	0
Unrealized Losses	0	0
Estimated Fair Value	1,103,000	0
Available-for-sale, Amortized Cost [Abstract]
Equity securities	1,000,000
Available for Sale, Estimated Fair Value [Abstract]
Equity securities	$ 1,103,000
GSE debt securities [Member]
Available for sale securities, continuous unrealized loss position [Abstract]
Number of available for sale securities in unrealized loss positions	22
GSEs residential mortgage-backed securities [Member]
Available for sale securities, continuous unrealized loss position [Abstract]
Number of available for sale securities in unrealized loss positions	19