Securities (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value	$ 26,330	$ 28,478
AFS Unrealized Losses	330	537
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value	770	12,097
AFS Unrealized Losses	285	589
Total AFS Fair Value	27,100	40,575
Total AFS Unrealized Losses	615	1,126
US Government-sponsored enterprises securities
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value		8,984
AFS Unrealized Losses		16
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value
AFS Unrealized Losses
Total AFS Fair Value		8,984
Total AFS Unrealized Losses		16
Mortgage-backed securities
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value	26,330	14,902
AFS Unrealized Losses	330	61
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value		9,302
AFS Unrealized Losses		30
Total AFS Fair Value	26,330	24,204
Total AFS Unrealized Losses	330	91
Corporate bonds
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value		4,588
AFS Unrealized Losses		458
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value	740	2,773
AFS Unrealized Losses	260	522
Total AFS Fair Value	740	7,361
Total AFS Unrealized Losses	260	980
Equities
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value		4
AFS Unrealized Losses		2
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value	30	22
AFS Unrealized Losses	25	37
Total AFS Fair Value	30	26
Total AFS Unrealized Losses	25	39
States and local governments
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value
AFS Unrealized Losses
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value
AFS Unrealized Losses
Total AFS Fair Value
Total AFS Unrealized Losses