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Significant Accounting Policies Significant Accounting Policies - Additional Information (Details) - WNB Bancshares, Inc. [Member] - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2014 | Dec. 31, 2014
Effect on net income attributable to parent purchase accounting adjustment | $ 234 |  |
Effect on earnings per share, basic, purchase accounting adjustment | $ 0.01 |  |
Effect on earnings per share, diluted, purchase accounting adjustment | $ 0.01 |  |
Property, Plant and Equipment [Member] |  |  |
Goodwill, Purchase Accounting Adjustments |  | $ (777) | $ (718)
Goodwill [Member] |  |  |
Goodwill, Purchase Accounting Adjustments |  | 819 | $ 718
Loans [Member] |  |  |
Goodwill, Purchase Accounting Adjustments |  | $ (18) |

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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e961-128460 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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