1 EXHIBIT 11.1 Statement Regarding Computation of Per Share Earnings For the three months For the year ended December 31, ended March 31, -------------------------------------- ------------------------ 1995 1996 1997 1997 1998 ---------- --------- ---------- --------- ---------- (unaudited) Net Income.................................. $ 2,524 $ 5,080 $ 7,652 $ 1,827 $ 3,111 Shares used in computation: Weighted average common shares outstanding used in computation of net income per common share............ 3,676,094 4,841,425 4,896,570 4,887,818 4,899,911 Dilutive effect of redeemable convertible preferred stock............ 838,210 19,600 9,800 9,800 9,800 Dilutive effect of common stock options................................ 209,799 24,281 56,294 56,294 22,874 ---------- ---------- ---------- ---------- ---------- Shares used in computation of net income per common share -- assuming dilution.................................. 4,724,103 4,885,306 4,962,664 4,953,912 4,932,585 ========== ========== ========== ========== ========== Net income per common share................. $ 0.69 $ 1.05 $ 1.56 $ 0.37 $ 0.63 ========== ========== ========== ========== ========== Net income per common share -- assuming dilution......................... $ 0.53 $ 1.04 $ 1.54 $ 0.37 $ 0.63 ========== ========== ========== ========== ==========