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Employee Compensation Plans - Summarizes of Company's Non-Vested Options (Detail) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |  |
Number of Options, Non-vested beginning of year | 50,780 |
Number of Options, Granted | 951 | 1,590
Number of Options, Vested | (24,841) |
Number of Options, Non-vested end of year | 26,890 | 50,780
Weighted average fair value, Non-vested beginning of year | $ 9.49 |
Weighted average fair value, Granted | $ 6.60 | $ 7.67
Weighted average fair value, Vested | $ 7.90 |
Weighted average fair value, Non-vested end of year | $ 10.86 | $ 9.49

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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of non-vested options outstanding. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of non-vested options outstanding. + References No definition available. + Details
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- Definition Number of options vested. + References No definition available. + Details
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