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Fair Value Disclosures (Details) (USD $) | Sep. 30, 2012 | Dec. 31, 2011 | Sep. 30, 2011
--- | --- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Allowance for OREO losses | $ 479,000 | $ 436,000 | $ 602,000
Allowance for loan losses | 5,062,000 | 2,058,000 | 1,627,000
Mortgage servicing rights | 1,129,000 | 1,581,000 | 1,541,000
Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Mortgage servicing rights | 0 |  |
Loans held for sale | 0 |  |
Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Mortgage servicing rights | 1,129,000 |  |
Loans held for sale | 0 |  |
Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Mortgage servicing rights | 0 |  |
Loans held for sale | 0 |  |
Fair Value, Measurements, Recurring [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
U.S. Treasury and agency |  |  | 16,494,000
Mortgage-backed securities | 189,437,000 | 198,232,000 | 235,038,000
State and municipal bonds | 108,955,000 | 85,726,000 | 74,039,000
Corporate securities | 0 | 811,000 | 779,000
Other equity securities | 1,508,000 | 1,433,000 | 432,000
Total assets | 299,900,000 | 286,202,000 | 326,782,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
U.S. Treasury and agency |  |  | 0
Mortgage-backed securities | 0 | 0 | 0
State and municipal bonds | 0 | 0 | 0
Corporate securities | 0 | 0 | 0
Other equity securities | 0 | 0 | 0
Total assets | 0 | 0 | 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
U.S. Treasury and agency |  |  | 16,494,000
Mortgage-backed securities | 189,437,000 | 198,232,000 | 235,038,000
State and municipal bonds | 108,955,000 | 85,726,000 | 74,039,000
Corporate securities | 0 | 811,000 | 779,000
Other equity securities | 1,508,000 | 1,433,000 | 432,000
Total assets | 299,900,000 | 286,202,000 | 326,782,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
U.S. Treasury and agency |  |  | 0
Mortgage-backed securities | 0 | 0 | 0
State and municipal bonds | 0 | 0 | 0
Corporate securities | 0 | 0 | 0
Other equity securities | 0 | 0 | 0
Total assets | 0 | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total assets | 23,591,000 | 17,840,000 | 16,287,000
Mortgage servicing rights | 1,129,000 | 1,581,000 | 1,541,000
Loans held for sale | 0 | 0 | 230,000
Other real estate owned | 5,471,000 | 4,094,000 | 6,310,000
Impaired loans | 16,991,000 | 12,165,000 | 8,206,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total assets | 0 | 0 | 0
Mortgage servicing rights | 0 | 0 | 0
Loans held for sale | 0 | 0 | 0
Other real estate owned | 0 | 0 | 0
Impaired loans | 0 | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total assets | 23,591,000 | 17,840,000 | 16,287,000
Mortgage servicing rights | 1,129,000 | 1,581,000 | 1,541,000
Loans held for sale | 0 | 0 | 230,000
Other real estate owned | 5,471,000 | 4,094,000 | 6,310,000
Impaired loans | 16,991,000 | 12,165,000 | 8,206,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total assets | 0 | 0 | 0
Mortgage servicing rights | 0 | 0 | 0
Loans held for sale | 0 | 0 | 0
Other real estate owned | 0 | 0 | 0
Impaired loans | $ 0 | $ 0 | $ 0

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- Definition Fair value as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS140-4/FIN46(R)-8 -Paragraph B9 -Subparagraph a(1) -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 140 -Paragraph 13A, 13B -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 140 -Paragraph 17 -Subparagraph f(1)(a) -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 Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6863725&loc=d3e122625-111746 + Details
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