Securities (Details 2 ) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	$ 65,128	$ 60,610
Less than 12 Months, Unrealized Loss	(592)	(485)
12 Months or More, Fair Value	15,173	18,666
12 Months or More, Unrealized Loss	(3,342)	(3,921)
Total, Fair Value	80,301	79,276
Total, Unrealized Loss	(3,934)	(4,406)
U.S. Treasury [Member]
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Loss	0	0
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	0	0
Total, Unrealized Loss	0	0
U.S. Gov't sponsored entities [Member]
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	3,091	7,671
Less than 12 Months, Unrealized Loss	(1)	(15)
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	3,091	7,671
Total, Unrealized Loss	(1)	(15)
State & political subdivisions [Member]
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	4,870	5,314
Less than 12 Months, Unrealized Loss	(35)	(92)
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	4,870	5,314
Total, Unrealized Loss	(35)	(92)
Residential mortgage & asset backed [Member]
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	57,167	36,626
Less than 12 Months, Unrealized Loss	(556)	(162)
12 Months or More, Fair Value	1,181	9,485
12 Months or More, Unrealized Loss	(15)	(52)
Total, Fair Value	58,348	46,111
Total, Unrealized Loss	(571)	(214)
Commercial mortgage and asset backed [Member]
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Loss	0	0
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	0	0
Total, Unrealized Loss	0	0
Corporate notes & bonds [Member]
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	0	2,860
Less than 12 Months, Unrealized Loss	0	(139)
12 Months or More, Fair Value	13,632	8,841
12 Months or More, Unrealized Loss	(2,887)	(3,409)
Total, Fair Value	13,632	11,701
Total, Unrealized Loss	(2,887)	(3,548)
Pooled trust preferred [Member]
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Loss	0	0
12 Months or More, Fair Value	360	340
12 Months or More, Unrealized Loss	(440)	(460)
Total, Fair Value	360	340
Total, Unrealized Loss	(440)	(460)
Pooled SBA [Member]
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	0	8,139
Less than 12 Months, Unrealized Loss	0	(77)
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	0	8,139
Total, Unrealized Loss	0	(77)
Other securities [Member]
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Loss	0	0
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	0	0
Total, Unrealized Loss	$ 0	$ 0