Deposits (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Certificate accounts maturing in:
Under 12 months	$ 89,907	$ 111,358
12 to 24 months	29,116	36,798
24 to 36 months	15,117	20,744
Over 36 months	42,238	35,812
Total certificate accounts	$ 176,378	$ 204,712