Summary of Shares Included in Diluted Earnings Per Share (Detail) - shares |
3 Months Ended | |
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Mar. 31, 2018 |
Mar. 31, 2017 |
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| Weighted average shares of common stock outstanding - basic | 32,421,467 | 25,067,954 |
| Weighted average shares of common stock outstanding - diluted | 38,098,373 | 28,445,647 |
| Employee Stock Option [Member] | ||
| Weighted Average Number Diluted Shares Outstanding Adjustment | 835,790 | 592,365 |
| Common Stock [Member] | ||
| Weighted Average Number Diluted Shares Outstanding Adjustment | 3,039,749 | 2,785,328 |
| Warrant [Member] | ||
| Weighted Average Number Diluted Shares Outstanding Adjustment | 1,801,367 | 0 |
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- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. 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 [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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