Other Real Estate and Covered Other Real Estate, (by type of property) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
Schedule Of Other Real Estate Acquired [Line Items]
Total covered other real estate	$ 5,147	$ 5,741	$ 6,482	$ 6,331
Construction Land Development And Other Land Properties [Member]
Schedule Of Other Real Estate Acquired [Line Items]
Total covered other real estate	893	1,284
1-4 Family Residential Properties [Member]
Schedule Of Other Real Estate Acquired [Line Items]
Total covered other real estate	4,197	1,306
Nonfarm, Nonresidential Properties [Member]
Schedule Of Other Real Estate Acquired [Line Items]
Total covered other real estate	0	3,151
Other Real Estate Properties [Member]
Schedule Of Other Real Estate Acquired [Line Items]
Total covered other real estate	$ 57	$ 0