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Deposits - Additional Information (Detail) (USD $) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2013 | Dec. 31, 2012
Deposit Assets [Abstract] |  |
Total deposits | $ 1,121,509,000 | $ 1,135,204,000
Amount of decrease in total deposits | $ 13,700,000 |
Percentage of decrease in total deposits | 1.20% |

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- Definition Change in deposit liabilities. + References No definition available. + Details
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- Definition Percentage of decrease in aggregate deposits. + References No definition available. + Details
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- Details
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- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. + 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 210.9-03.12) -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 12 -Article 9 + Details
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