| Three Months | Six Months | |||||||||||||||
| 2007 | 2006 | 2007 | 2006 | |||||||||||||
| Net earnings (loss) | $ | (1,071,304 | ) | $ | 214,727 | $ | (1,514,616 | ) | $ | 134,849 | ||||||
| Average shares outstanding | 9,225,212 | 9,189,642 | 9,218,482 | 9,179,165 | ||||||||||||
| Stock options & purchase plan: | ||||||||||||||||
| Total options & purchase plan shares | — | 412,931 | — | 431,296 | ||||||||||||
| Warrants assumed converted | — | 750,000 | — | 750,000 | ||||||||||||
| Assumed treasury stock buyback | — | (668,384 | ) | — | (604,675 | ) | ||||||||||
| Convertible redeemable preferred stock assumed converted | — | — | — | — | ||||||||||||
| Number of shares used in per common share computation | 9,225,212 | 9,684,189 | 9,218,482 | 9,755,786 | ||||||||||||
| Basic net earnings ( loss ) per share of common stock | $ | (0.12 | ) | $ | 0.02 | $ | (0.16 | ) | $ | 0.01 | ||||||
| Diluted net earnings ( loss ) per share of common stock | $ | (0.12 | ) | $ | 0.02 | $ | (0.16 | ) | $ | 0.01 | ||||||
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