Significant Accounting Policies - Computation of Weighted Average Shares Used in the Calculation of Basic and Dilutive Earnings Per Share (Detail) - shares |
12 Months Ended | ||
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Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Earnings Per Share [Abstract] | |||
| Weighted average number of common shares used in computing basic net income per common share | 7,096,969 | 7,193,712 | 7,640,615 |
| Effect of ESOP shares | (44,667) | ||
| Adjusted weighted average number of common shares used in computing basic net income per common share | 7,096,969 | 7,193,712 | 7,595,948 |
| Effect of dilutive stock options | 106 | 0 | 0 |
| Weighted average number of common shares and dilutive potential common shares used in computing diluted net income per common share | 7,097,075 | 7,193,712 | 7,595,948 |
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- References No definition available.
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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of employee stock ownership plan (ESOP) shares that have not been committed to be released determined by relating the portion of time within a reporting period that these shares have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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