Acquisitions and FDIC Indemnification Asset (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Beginning balance	$ 1,770	$ 2,632	$ 2,384
Accretion	0		0
Net changes in losses and expenses	(128)	(830)	2,422
Reimbursements from the FDIC	(127)	(287)	(2,174)
TOTAL	$ 1,515	$ 1,515	$ 2,632

Amount of increases to the indemnification asset due to additional estimated losses assumed by the Federal Deposit Insurance Corporation (FDIC), relating to loss sharing agreements with the FDIC.

No definition available.

Name:	us-gaap_FDICIndemnificationAssetAdditionalEstimatedLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration