| Operating Income Per Share | |||
| (In thousands, except per share data) | |||
Three Months Ended | |||
June 30, | |||
2010 | 2009 | ||
| Shares used in the calculation of operating income per share: | |||
| Weighted average common shares outstanding - basic | 22,211 | 21,965 | |
| Weighted average common shares outstanding - diluted | 22,750 | 22,357 | |
| Operating income per share - basic | $ 0.27 | $ 0.26 | |
| Operating income per share - diluted | $ 0.26 | $ 0.26 | |
| Revenues by Geographic Region | |||
| (In thousands) | |||
Three Months Ended | |||
June 30, | |||
2010 | 2009 | ||
| North America | $ 27,789 | $ 24,111 | |
| International | 7,164 | 5,514 | |
| Total revenues | $ 34,953 | $ 29,625 | |
| Revenues by Customer Group | |||
| (In thousands) | |||
Three Months Ended | |||
June 30, | |||
2010 | 2009 | ||
| Medical Market | $ 6,438 | $ 5,763 | |
| Veterinary Market | 26,818 | 21,823 | |
| Other | 1,697 | 2,039 | |
| Total revenues | $ 34,953 | $ 29,625 | |
