Investments (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014 Security	Jun. 30, 2013	Jun. 30, 2014 Security	Jun. 30, 2013	Dec. 31, 2013
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	$ 308,987,000		$ 308,987,000		$ 317,463,000
Gross Unrealized Gains	5,414,000		5,414,000		4,538,000
Gross Unrealized Losses	(2,079,000)		(2,079,000)		(4,700,000)
Fair Value	312,322,000		312,322,000		317,301,000
Number of securities owned with fair value than cost	69		69
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	42,765,000		42,765,000		163,889,000
Twelve Months or Greater, Fair Value	78,997,000		78,997,000		12,731,000
Total, Fair Value	121,762,000		121,762,000		176,620,000
Less than Twelve Months, Gross Unrealized Losses			(307,000)		(4,014,000)
Twelve Months or Greater, Gross Unrealized Losses			(1,772,000)		(686,000)
Total, Gross Unrealized Losses			(2,079,000)		(4,700,000)
Duration securities impaired, Minimum			1 year
Proceeds from sale of securities available-for-sale	6,595,000	11,917,000	12,151,000	15,773,000
Realized investment gains (losses) [Abstract]
Gross gains	75,000	238,000	246,000	434,000
Gross losses	0	(140,000)	0	(140,000)
Net gains	75,000	98,000	246,000	294,000
Investment securities pledged as collateral	185,600,000		185,600,000		194,700,000
Amortized Cost [Abstract]
Due in one year or less	12,560,000		12,560,000
Due after one year through five years	123,887,000		123,887,000
Due after five years through ten years	66,528,000		66,528,000
Due after ten years	104,874,000		104,874,000
Total	307,849,000		307,849,000
Fair Value [Abstract]
Due in one year or less	12,712,000		12,712,000
Due after one year through five years	124,167,000		124,167,000
Due after five years through ten years	66,174,000		66,174,000
Due after ten years	107,396,000		107,396,000
Total	310,449,000		310,449,000
U.S. Agency Securities [Member]
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	147,871,000		147,871,000		153,896,000
Gross Unrealized Gains	664,000		664,000		702,000
Gross Unrealized Losses	(1,200,000)		(1,200,000)		(2,409,000)
Fair Value	147,335,000		147,335,000		152,189,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	36,001,000		36,001,000		98,356,000
Twelve Months or Greater, Fair Value	43,305,000		43,305,000		2,825,000
Total, Fair Value	79,306,000		79,306,000		101,181,000
Less than Twelve Months, Gross Unrealized Losses			(225,000)		(2,212,000)
Twelve Months or Greater, Gross Unrealized Losses			(975,000)		(197,000)
Total, Gross Unrealized Losses			(1,200,000)		(2,409,000)
US Treasury Securities [Member]
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	11,868,000		11,868,000		11,856,000
Gross Unrealized Gains	0		0		0
Gross Unrealized Losses	(364,000)		(364,000)		(547,000)
Fair Value	11,504,000		11,504,000		11,309,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	0		0		11,309,000
Twelve Months or Greater, Fair Value	11,503,000		11,503,000		0
Total, Fair Value	11,503,000		11,503,000		11,309,000
Less than Twelve Months, Gross Unrealized Losses			0		(547,000)
Twelve Months or Greater, Gross Unrealized Losses			(364,000)		0
Total, Gross Unrealized Losses			(364,000)		(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	98,825,000		98,825,000		94,113,000
Gross Unrealized Gains	3,182,000		3,182,000		2,146,000
Gross Unrealized Losses	(380,000)		(380,000)		(1,254,000)
Fair Value	101,627,000		101,627,000		95,005,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	5,770,000		5,770,000		24,201,000
Twelve Months or Greater, Fair Value	11,357,000		11,357,000		6,491,000
Total, Fair Value	17,127,000		17,127,000		30,692,000
Less than Twelve Months, Gross Unrealized Losses			(79,000)		(865,000)
Twelve Months or Greater, Gross Unrealized Losses			(301,000)		(389,000)
Total, Gross Unrealized Losses			(380,000)		(1,254,000)
Corporate Obligations [Member]
Available for Sale Securities Amortized Cost, Gross Unrealized Gains or Losses and Fair Value [Abstract]
Amortized Cost	13,992,000		13,992,000		16,651,000
Gross Unrealized Gains	282,000		282,000		341,000
Gross Unrealized Losses	(59,000)		(59,000)		(190,000)
Fair Value	14,215,000		14,215,000		16,802,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	507,000		507,000		6,103,000
Twelve Months or Greater, Fair Value	7,855,000		7,855,000		2,251,000
Total, Fair Value	8,362,000		8,362,000		8,354,000
Less than Twelve Months, Gross Unrealized Losses			(1,000)		(124,000)
Twelve Months or Greater, Gross Unrealized Losses			(58,000)		(66,000)
Total, Gross Unrealized Losses			(59,000)		(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	35,293,000		35,293,000		40,405,000
Gross Unrealized Gains	549,000		549,000		566,000
Gross Unrealized Losses	(74,000)		(74,000)		(300,000)
Fair Value	35,768,000		35,768,000		40,671,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	0		0		23,920,000
Twelve Months or Greater, Fair Value	4,977,000		4,977,000		1,164,000
Total, Fair Value	4,977,000		4,977,000		25,084,000
Less than Twelve Months, Gross Unrealized Losses			0		(266,000)
Twelve Months or Greater, Gross Unrealized Losses			(74,000)		(34,000)
Total, Gross Unrealized Losses			(74,000)		(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	1,138,000		1,138,000		542,000
Gross Unrealized Gains	737,000		737,000		783,000
Gross Unrealized Losses	(2,000)		(2,000)		0
Fair Value	1,873,000		1,873,000		1,325,000
Available-For-Sale Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than Twelve Months, Fair Value	487,000		487,000
Twelve Months or Greater, Fair Value	0		0
Total, Fair Value	487,000		487,000
Less than Twelve Months, Gross Unrealized Losses			(2,000)
Twelve Months or Greater, Gross Unrealized Losses			0
Total, Gross Unrealized Losses			$ (2,000)