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Capital Requirements - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified | 9 Months Ended
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Sep. 30, 2013
Regulatory Capital Requirements [Abstract] |
Sale of common shares under rights offering | 1,945,815
Rights exercised by existing shareholders | 1,520,815
Subscription price of share | 4.00
Rights purchased by standby investors | 425,000
Net proceeds from rights issued | $ 7.6

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 4 -Article 4 + Details
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