Deposits (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Contractual Maturities of Time Deposits of $100,000 or More, Domestic
Time deposits, $100,000 or more, domestic, Three Months or Less	$ 2,831	$ 4,411
Time deposits, $100,000 or more, domestic, Over Three and Less than Six Months	2,577	3,719
Time deposits, $100,000 or more, domestic, Over Six and Less than Twelve Months	3,684	5,103
Time deposits, $100,000 or more, domestic, Over Twelve Months	11,604	8,807
Time deposits, $100,000 or more, domestic, Total	$ 20,696	$ 22,040