Investments (Details) (USD $)	3 Months Ended
	Mar. 31, 2014 Security	Mar. 31, 2013	Dec. 31, 2013
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	$ 309,068,000		$ 317,463,000
Gross Unrealized Gains	4,922,000		4,538,000
Gross Unrealized Losses	(3,007,000)		(4,700,000)
Fair Value	310,983,000		317,301,000
Number of securities owned with fair value than cost	81
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	132,141,000		163,889,000
Twelve Months or Greater, Fair Value	17,354,000		12,731,000
Total, Fair Value	149,495,000		176,620,000
Less than Twelve Months, Gross Unrealized Losses	(2,459,000)		(4,014,000)
Twelve Months or Greater, Gross Unrealized Losses	(548,000)		(686,000)
Total, Gross Unrealized Losses	(3,007,000)		(4,700,000)
Duration securities impaired, Minimum	1 year
Proceeds from sale of securities available-for-sale	5,556,000	3,856,000
Realized investment gains (losses) [Abstract]
Gross gains	171,000	196,000
Gross losses	0	0
Net gains	171,000	196,000
Investment securities pledged as collateral	172,000,000		194,700,000
Amortized Cost [Abstract]
Due in one year or less	19,518,000
Due after one year through five years	114,020,000
Due after five years through ten years	68,444,000
Due after ten years	105,989,000
Total	307,971,000
Fair Value [Abstract]
Due in one year or less	19,738,000
Due after one year through five years	113,967,000
Due after five years through ten years	67,658,000
Due after ten years	107,705,000
Total	309,068,000
U.S. Agency Securities [Member]
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	147,656,000		153,896,000
Gross Unrealized Gains	591,000		702,000
Gross Unrealized Losses	(1,695,000)		(2,409,000)
Fair Value	146,552,000		152,189,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	82,029,000		98,356,000
Twelve Months or Greater, Fair Value	2,883,000		2,825,000
Total, Fair Value	84,912,000		101,181,000
Less than Twelve Months, Gross Unrealized Losses	(1,564,000)		(2,212,000)
Twelve Months or Greater, Gross Unrealized Losses	(131,000)		(197,000)
Total, Gross Unrealized Losses	(1,695,000)		(2,409,000)
US Treasury Securities [Member]
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	11,862,000		11,856,000
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(469,000)		(547,000)
Fair Value	11,393,000		11,309,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	11,393,000		11,309,000
Twelve Months or Greater, Fair Value	0		0
Total, Fair Value	11,393,000		11,309,000
Less than Twelve Months, Gross Unrealized Losses	(469,000)		(547,000)
Twelve Months or Greater, Gross Unrealized Losses	0		0
Total, Gross Unrealized Losses	(469,000)		(547,000)
Obligations of State and Political Subdivisions [Member]
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	95,727,000		94,113,000
Gross Unrealized Gains	2,747,000		2,146,000
Gross Unrealized Losses	(532,000)		(1,254,000)
Fair Value	97,942,000		95,005,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	8,888,000		24,201,000
Twelve Months or Greater, Fair Value	9,551,000		6,491,000
Total, Fair Value	18,439,000		30,692,000
Less than Twelve Months, Gross Unrealized Losses	(197,000)		(865,000)
Twelve Months or Greater, Gross Unrealized Losses	(335,000)		(389,000)
Total, Gross Unrealized Losses	(532,000)		(1,254,000)
Corporate Obligations [Member]
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	15,566,000		16,651,000
Gross Unrealized Gains	307,000		341,000
Gross Unrealized Losses	(127,000)		(190,000)
Fair Value	15,746,000		16,802,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	6,102,000		6,103,000
Twelve Months or Greater, Fair Value	2,254,000		2,251,000
Total, Fair Value	8,356,000		8,354,000
Less than Twelve Months, Gross Unrealized Losses	(82,000)		(124,000)
Twelve Months or Greater, Gross Unrealized Losses	(45,000)		(66,000)
Total, Gross Unrealized Losses	(127,000)		(190,000)
Mortgage-backed Securities in Government Sponsored Entities [Member]
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	37,160,000		40,405,000
Gross Unrealized Gains	459,000		566,000
Gross Unrealized Losses	(184,000)		(300,000)
Fair Value	37,435,000		40,671,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	23,729,000		23,920,000
Twelve Months or Greater, Fair Value	2,666,000		1,164,000
Total, Fair Value	26,395,000		25,084,000
Less than Twelve Months, Gross Unrealized Losses	(147,000)		(266,000)
Twelve Months or Greater, Gross Unrealized Losses	(37,000)		(34,000)
Total, Gross Unrealized Losses	(184,000)		(300,000)
Equity Securities in Financial Institutions [Member]
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	1,097,000		542,000
Gross Unrealized Gains	818,000		783,000
Gross Unrealized Losses	0		0
Fair Value	$ 1,915,000		$ 1,325,000