Securities (Details 2) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Fair Value, Less than 12 Months	$ 86,325	$ 12,212
Unrealized Loss, Less than 12 Months	(3,529)	(90)
Fair Value, 12 Months or More	0	0
Unrealized Loss, 12 Months or More	0	0
Fair Value, Total	86,325	12,212
Unrealized Loss, Total	(3,529)	(90)
U.S. Treasury and federal agency [Member]
Fair Value, Less than 12 Months	4,248
Unrealized Loss, Less than 12 Months	(217)
Fair Value, 12 Months or More	0
Unrealized Loss, 12 Months or More	0
Fair Value, Total	4,248
Unrealized Loss, Total	(217)
U.S. government sponsored entities and agencies [Member]
Fair Value, Less than 12 Months	23,044
Unrealized Loss, Less than 12 Months	(592)
Fair Value, 12 Months or More	0
Unrealized Loss, 12 Months or More	0
Fair Value, Total	23,044
Unrealized Loss, Total	(592)
Collateralized mortgage obligations: residential [Member]
Fair Value, Less than 12 Months	42,552	10,698
Unrealized Loss, Less than 12 Months	(1,851)	(80)
Fair Value, 12 Months or More	0	0
Unrealized Loss, 12 Months or More	0	0
Fair Value, Total	42,552	10,698
Unrealized Loss, Total	(1,851)	(80)
State and political subdivisions [Member]
Fair Value, Less than 12 Months	15,286	521
Unrealized Loss, Less than 12 Months	(847)	(1)
Fair Value, 12 Months or More	0	0
Unrealized Loss, 12 Months or More	0	0
Fair Value, Total	15,286	521
Unrealized Loss, Total	(847)	(1)
Corporate debt securities [Member]
Fair Value, Less than 12 Months	241	500
Unrealized Loss, Less than 12 Months	(10)	(1)
Fair Value, 12 Months or More	0	0
Unrealized Loss, 12 Months or More	0	0
Fair Value, Total	241	500
Unrealized Loss, Total	(10)	(1)
Equity Securities [Member]
Fair Value, Less than 12 Months	954	493
Unrealized Loss, Less than 12 Months	(12)	(8)
Fair Value, 12 Months or More	0	0
Unrealized Loss, 12 Months or More	0	0
Fair Value, Total	954	493
Unrealized Loss, Total	$ (12)	$ (8)