Other Real Estate Owned (Details Textual) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Other Real Estate Owned (Textual) [Abstract]
Total impairment charges	$ 7,507
Consolidated Statements of Income [Member]
Other Real Estate Owned (Textual) [Abstract]
Total impairment charges	1,501
FDIC Loss Share Indemnification Asset [Member]
Other Real Estate Owned (Textual) [Abstract]
Total impairment charges	$ 6,006