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Disclosures About Fair Value Measurements (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Disclosures About Fair Value Measurements [Abstract]
Carrying value of impaired loans	$ 2,339	$ 4,806
Specific valuation allowance	747	1,600
Net fair value of impaired loans	$ 1,500	$ 3,200
Assets and liabilities considered financial instruments, percentage	90.00%
Loan held for sale account delivery dates lock period	30, 45, or 60 day lock period

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Assets and liabilities considered financial instruments, percentage.

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Net fair value of impaired loans.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953550-111524

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Amount of allowance for credit losses related to recorded investment.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524

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