EXHIBIT 11 Computation of weighted average number of shares of common stock For the three For the six months ended June months ended June ----------------- ----------------- 1998 1999 1998 1999 ------ ------ ------ ------ Shares outstanding at beginning of period (net of 25,000 shares held in treasury)......... 15,043 15,177 15,037 15,158 Weighted average shares issued ................... 14 58 10 46 ------ ------ ------ ------ Shares used in the calculation of Basic EPS (weighted average shares outstanding) .................................. 15,057 15,235 15,047 15,204 Effect of dilutive securities .................... 269 377 239 371 ------ ------ ------ ------ Shares used in the calculation of Diluted EPS .................................... 15,326 15,612 15,286 15,575 ====== ====== ====== ======