Securities (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Less Than 12 Months
Fair Value	$ 142,103	$ 67,063
Unrealized Losses	(1,133)	(352)
More Than 12 Months
Fair Value	4,935	4,032
Unrealized Losses	(7,596)	(7,882)
Total
Fair Value	147,038	71,095
Unrealised Losses	(8,729)	(8,234)
Mortgage Backed Securities - Residential
Less Than 12 Months
Fair Value	19,004	7,245
Unrealized Losses	(123)	(13)
More Than 12 Months
Fair Value	0	0
Unrealized Losses	0	0
Total
Fair Value	19,004	7,245
Unrealised Losses	(123)	(13)
Mortgage Backed Securities - Commercial
Less Than 12 Months
Fair Value	4,920	5,086
Unrealized Losses	(65)	(16)
More Than 12 Months
Fair Value	0	0
Unrealized Losses	0	0
Total
Fair Value	4,920	5,086
Unrealised Losses	(65)	(16)
Collateralized Mortgage Obligations
Less Than 12 Months
Fair Value	107,099	46,121
Unrealized Losses	(799)	(246)
More Than 12 Months
Fair Value	0	0
Unrealized Losses	0	0
Total
Fair Value	107,099	46,121
Unrealised Losses	(799)	(246)
State and Municipal Obligations
Less Than 12 Months
Fair Value	11,080	8,611
Unrealized Losses	(146)	(77)
More Than 12 Months
Fair Value	1,048	0
Unrealized Losses	(42)	0
Total
Fair Value	12,128	8,611
Unrealised Losses	(188)	(77)
Collateralized Debt Obligations
Less Than 12 Months
Fair Value	0	0
Unrealized Losses	0	0
More Than 12 Months
Fair Value	3,887	4,032
Unrealized Losses	(7,554)	(7,882)
Total
Fair Value	3,887	4,032
Unrealised Losses	$ (7,554)	$ (7,882)

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