Earnings (loss) per Share - Computation for Basic and Diluted Earnings per Share (Detail) - $ / shares |
3 Months Ended | |
|---|---|---|
May 31, 2016 |
May 31, 2015 |
|
| Earnings Per Share [Abstract] | ||
| Basic weighted average common shares outstanding | 25,783,770 | 25,586,596 |
| Effect of dilutive options | 26,965 | 12,459 |
| Diluted weighted average common shares outstanding | 25,810,735 | 25,599,055 |
| Earnings (loss) per share - basic and diluted | ||
| Earnings per share on continuing operations | $ 0.26 | $ 0.34 |
| Earnings per share on discontinued operations | 0.10 | 0.02 |
| Loss per share on sale of discontinued operations | (1.01) | |
| Earnings (loss) on discontinued operations | (0.91) | 0.02 |
| Net earnings (loss) | (0.65) | 0.36 |
| Cash dividends | $ 0.175 | $ 0.175 |