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Allowance For Loan Loss Additional Information (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 31, 2012 | Jun. 30, 2012
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Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | $ 6,174 |  | $ 5,661
Financing Receivable, Collectively Evaluated for Impairment | 385,568 |  | 390,961
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 283 |  | 842
Financing Receivable, Individually Evaluated for Impairment | 5,407 |  | 8,631
Allowance for loan losses | 6,457 | 6,723 | 6,503
Loans and Leases Receivable, Gross, Carrying Amount | 390,975 | 398,426 | 399,592
Commercial and Industrial Loans [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 675 |  | 731
Financing Receivable, Collectively Evaluated for Impairment | 55,882 |  | 59,223
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 |  | 0
Financing Receivable, Individually Evaluated for Impairment | 148 |  | 195
Allowance for loan losses | 675 |  | 731
Loans and Leases Receivable, Gross, Carrying Amount | 56,030 | 59,334 | 59,418
Construction And Land Development Loans [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,347 |  | 1,257
Financing Receivable, Collectively Evaluated for Impairment | 44,285 |  | 35,110
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 107 |  | 366
Financing Receivable, Individually Evaluated for Impairment | 1,601 |  | 3,858
Allowance for loan losses | 1,454 |  | 1,623
Loans and Leases Receivable, Gross, Carrying Amount | 45,886 | 37,631 | 38,968
Commercial Real Estate Loans, Total [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 2,991 |  | 2,666
Financing Receivable, Collectively Evaluated for Impairment | 174,922 |  | 182,817
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 120 |  | 151
Financing Receivable, Individually Evaluated for Impairment | 2,369 |  | 3,029
Allowance for loan losses | 3,111 |  | 2,817
Loans and Leases Receivable, Gross, Carrying Amount | 177,291 | 183,611 | 185,846
Residential Real Estate Loans, Total [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,069 |  | 953
Financing Receivable, Collectively Evaluated for Impairment | 97,732 |  | 102,678
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 56 |  | 325
Financing Receivable, Individually Evaluated for Impairment | 1,289 |  | 1,549
Allowance for loan losses | 1,125 |  | 1,278
Loans and Leases Receivable, Gross, Carrying Amount | 99,021 | 105,631 | 104,227
Consumer Installment and Revolving Loans [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 92 |  | 54
Financing Receivable, Collectively Evaluated for Impairment | 12,747 |  | 11,133
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 |  | 0
Financing Receivable, Individually Evaluated for Impairment | 0 |  | 0
Allowance for loan losses | 92 |  | 54
Loans and Leases Receivable, Gross, Carrying Amount | $ 12,747 | $ 12,219 | $ 11,133

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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 8, 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Paragraph 8 -Subparagraph a(ii) -Chapter V -Subsection I -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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