Foreclosed Property - Activity in the valuation allowance for foreclosed property (Details 1) (USD $) In Thousands, unless otherwise specified					3 Months Ended
Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2013 Foreclosed Property	Mar. 31, 2012 Foreclosed Property
Activity in the valuation allowance for foreclosed property
Balance at beginning of year	$ 4,979	$ 6,954	$ 17,746	$ 18,982	$ 6,954	$ 18,982
Additions charged to expense					1,041	2,111
Disposals					(3,016)	(3,347)
Balance at end of year	$ 4,979	$ 6,954	$ 17,746	$ 18,982	$ 4,979	$ 17,746

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Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690

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- Definition

+ References

+ Details

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- Definition

Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

+ References

+ Details

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