Income Per Share - Reconciliation of Numerators and Denominators of Basic and Diluted Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | |
|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
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| Numerator: | ||
| Net income | $ 2,323 | $ 935 |
| Denominator: | ||
| Weighted average common shares outstanding | 9,790 | 9,748 |
| Basic income per share | $ 0.24 | $ 0.10 |
| Numerator: | ||
| Net income | $ 2,323 | $ 935 |
| Denominator: | ||
| Weighted average common shares outstanding | 9,790 | 9,748 |
| Stock options outstanding | 14 | 10 |
| Weighted average common and potential common shares outstanding | 9,804 | 9,758 |
| Diluted income per share | $ 0.24 | $ 0.10 |
| X | ||||||||||
- Definition Denominator. No definition available.
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| X | ||||||||||
- Definition Denominator diluted income. No definition available.
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- Definition Numerator. No definition available.
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- Definition Numerator diluted income. No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- 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://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- 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://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- 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://fasb.org/us-gaap/role/ref/legacyRef
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