Interest Bearing Deposits In Other Banks (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Interest Bearing Deposits In Other Banks [Abstract]
Interest bearing deposits at Federal Reserve Bank (FRB)	$ 90,224	$ 48,627
Interest bearing deposits at Federal Home Loan Bank (FHLB)	144	99
Domestic certificates of deposit at other institutions	13,500	12,000
Other interest bearing deposits at other institutions	10,111	160
Total	$ 113,979	$ 60,886
Maximum maturity period	1 year