Deposits (Details 1) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Depicts the maturity distribution for certificates of deposit at year-end
In one year or less	$ 246,630,000	$ 369,362,000
In one to two years	61,004,000	107,463,000
In two to three years	67,635,000	37,290,000
In three to four years	63,894,000	44,034,000
In four to five years	94,843,000	23,113,000
Total certificates of deposit	$ 534,006,000	$ 581,262,000