The following table presents the calculation of net earnings per common share (“EPS”) — basic and diluted. | | | | | | | | | | | | | | | | | | Three months ended September 30, | | Nine months ended
September 30, | | 2011 | | 2010 | | 2011 | | 2010 | Net income | $ | 9,261 |
| | $ | 8,975 |
| | $ | 26,827 |
| | $ | 20,943 |
| Weighted average number of common shares outstanding (for basic calculation) | 13,932 |
| | 13,489 |
| | 13,826 |
| | 13,605 |
| Dilutive securities | 252 |
| | 263 |
| | 343 |
| | 233 |
| Weighted average common and common equivalent shares outstanding (for diluted calculation) | 14,184 |
| | 13,752 |
| | 14,169 |
| | 13,838 |
| EPS — basic | $ | 0.66 |
| | $ | 0.67 |
| | $ | 1.94 |
| | $ | 1.54 |
| EPS — diluted | $ | 0.65 |
| | $ | 0.65 |
| | $ | 1.89 |
| | $ | 1.51 |
|
|