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Intangible Assets (Details 3) (USD $) |  |  | 9 Months Ended | 12 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2013 | Dec. 31, 2012 | Sep. 30, 2012 Balance had error been corrected in prior period | Dec. 31, 2012 Error adjustment related to amortization method of MSR's | Sep. 30, 2013 Mortgage Service Rights | Sep. 30, 2012 Mortgage Service Rights | Sep. 30, 2013 Mortgage Service Rights | Sep. 30, 2012 Mortgage Service Rights | Dec. 31, 2012 Mortgage Service Rights | Sep. 30, 2013 Mortgage Service Rights Fair value option for mortgage servicing rights
Mortgage Servicing Rights |  |  |  |  |  |  |  |  |  |
Cumulative effect of change in accounting principle as increase to retained earnings |  |  |  |  |  |  |  |  |  | $ 459,890
Mortgage loans serviced for others |  |  |  |  | 323,000,000 |  | 323,000,000 |  | 310,600,000 |
Mortgage loan servicing fees reported as other non-interest income |  |  |  |  | 214,000 | 211,000 | 674,000 | 637,000 |  |
Changes in mortgage servicing rights |  |  |  |  |  |  |  |  |  |
Balance at beginning of year | 3,079,000 | 2,549,000 |  |  | 2,873,000 | 2,666,000 | 2,549,000 | 2,308,000 |  |
Re-measurement to fair value upon election to measure servicing rights at fair value |  |  |  |  |  |  |  | 742,000 |  |
Originated mortgage servicing rights |  |  |  |  | 83,000 | 231,000 | 444,000 | 559,000 |  |
Changes in fair value: |  |  |  |  |  |  |  |  |  |
Due to change in model inputs and assumptions |  |  |  |  | 296,000 | 96,000 | 677,000 | 372,000 |  |
Other changes in fair value |  |  |  |  | (173,000) | (369,000) | (591,000) | (1,357,000) |  |
Balance at end of year | 3,079,000 | 2,549,000 |  |  | 3,079,000 | 2,624,000 | 3,079,000 | 2,624,000 |  |
Error correction, amortization of MSR's |  |  | $ 1,800,000 | $ 538,000 |  |  |  |  |  |

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- Definition The total amount of contractually specified servicing fees, late fees, and ancillary fees earned for each period for which results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122596-111746 + Details
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- Definition Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22499-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22580-107794 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Direct Effects of a Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6510796 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Indirect Effects of a Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6515603 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accounting Change -URI http://asc.fasb.org/extlink&oid=6503790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6507316 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Retrospective Application -URI http://asc.fasb.org/extlink&oid=6523989 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22583-107794 + Details
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- Definition Amount of amortization of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122739-111746 + Details
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- Definition The net Increase or Decrease in fair value as a result of changes in the inputs, assumptions, or model used to calculate the fair value of servicing assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(4)(i) -URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746 + Details
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- Definition The net Increase or Decrease in fair value as a result of other changes that are not additions, disposals, or a result of change in the inputs, assumptions, or model used to calculate the fair value of servicing assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(4)(ii) -URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746 + Details
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