Securities (Unrealized Losses) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Fair value
Less than 12 months	$ 34,712	$ 18,412
12 months or longer	0	0
Total	34,712	18,412
Unrealized losses
Less than 12 months	240	79
12 months or longer	0	0
Total	240	79
US Government agency obligations - government-sponsored enterprises
Fair value
Less than 12 months	9,030
12 months or longer	0
Total	9,030
Unrealized losses
Less than 12 months	13
12 months or longer	0
Total	13
Municipal obligations
Fair value
Less than 12 months	2,525
12 months or longer	0
Total	2,525
Unrealized losses
Less than 12 months	28
12 months or longer	0
Total	28
Collateralized mortgage obligations - government issued
Fair value
Less than 12 months	16,787	16,336
12 months or longer	0	0
Total	16,787	16,336
Unrealized losses
Less than 12 months	178	64
12 months or longer	0	0
Total	178	64
Collateralized mortgage obligations - government-sponsored enterprises
Fair value
Less than 12 months	6,370	2,076
12 months or longer	0	0
Total	6,370	2,076
Unrealized losses
Less than 12 months	21	15
12 months or longer	0	0
Total	$ 21	$ 15