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Allowance for Loan Losses (Details 2) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Impaired loans and the related allowance |  |
Unpaid Principal Balance | $ 25,322 | $ 32,317
Recorded Investment with No Allowance | 8,120 | 15,161
Recorded Investment with Allowance | 11,752 | 10,758
Total Recorded Investment | 19,872 | 25,920
Related Allowance | 3,239 | 2,438
Average Recorded Investment | 21,302 | 38,174
Interest Income Recognized | 475 | 1,091
Commercial and industrial [Member] |  |
Impaired loans and the related allowance |  |
Unpaid Principal Balance | 165 | 480
Recorded Investment with No Allowance |  |
Recorded Investment with Allowance | 164 | 480
Total Recorded Investment | 164 | 480
Related Allowance | 40 | 309
Average Recorded Investment | 386 | 660
Interest Income Recognized | 6 | 27
Consumer and other loans [Member] |  |
Impaired loans and the related allowance |  |
Unpaid Principal Balance |  |
Recorded Investment with No Allowance |  |
Recorded Investment with Allowance |  |
Total Recorded Investment |  |
Related Allowance |  |
Average Recorded Investment |  |
Interest Income Recognized |  |
Other real estate loans [Member] |  |
Impaired loans and the related allowance |  |
Unpaid Principal Balance | 12,673 | 15,165
Recorded Investment with No Allowance | 5,569 | 8,135
Recorded Investment with Allowance | 3,027 | 2,805
Total Recorded Investment | 8,597 | 10,940
Related Allowance | 762 | 351
Average Recorded Investment | 10,155 | 23,918
Interest Income Recognized | 88 | 396
Construction and land development [Member] | Real estate loans [Member] |  |
Impaired loans and the related allowance |  |
Unpaid Principal Balance | 6,683 | 8,106
Recorded Investment with No Allowance | 596 | 3,531
Recorded Investment with Allowance | 5,758 | 4,109
Total Recorded Investment | 6,353 | 7,640
Related Allowance | 1,728 | 930
Average Recorded Investment | 5,516 | 7,077
Interest Income Recognized | 238 | 367
Secured by 1-4 family residential [Member] | Real estate loans [Member] |  |
Impaired loans and the related allowance |  |
Unpaid Principal Balance | 5,801 | 8,566
Recorded Investment with No Allowance | 1,955 | 3,495
Recorded Investment with Allowance | 2,803 | 3,365
Total Recorded Investment | 4,758 | 6,860
Related Allowance | 709 | 848
Average Recorded Investment | 5,244 | 6,519
Interest Income Recognized | $ 143 | $ 301

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- Definition 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=7512638&loc=SL6953550-111524 + Details
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- Definition Amount of allowance for credit losses related to recorded investment. + References 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=7512638&loc=d3e5212-111524 + Details
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- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without 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 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524 + Details
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- Definition Amount of investment in impaired financing receivables for which there is no 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=7512638&loc=SL6953550-111524 + Details
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