EXHIBIT 11 COMPUTATION OF EARNINGS PER SHARE Three Months Ended Nine Months Ended ---------------------- --------------------- September 30 September 30 ---------------------- --------------------- 1997 1996 1997 1996 ---------- ----------- ---------- ---------- (in thousands, except per share data) Primary: Net Income $ 4,805 $ 3,787 $ 13,750 $ 11,860 ========== ========== ========== ========= Weighted average number of common shares outstanding 18,963 19,029 19,238 19,083 Add: Dilutive effect of outstanding options, as determined by the application of the treasury stock method using the average market price of the Company's common stock 585 998 421 879 ---------- ---------- ---------- ---------- Weighted average number of common and common equivalent shares 19,548 20,027 19,659 19,962 ---------- ---------- ---------- ---------- Primary earnings per share $ .25 $ .19 $ .70 $ .59 ========== ========== ========== ========== Fully diluted: Weighted average number of common and common equivalent shares 19,548 20,027 19,657 19,962 Add: Additional dilutive effect of outstanding options, as determined by the application of the treasury stock method using the quarter end market price of the Company's common stock 61 0 62 1 ---------- ---------- ---------- ---------- Weighted average number of common shares fully diluted 19,609 20,027 19,721 19,963 ---------- ---------- ---------- ---------- Fully diluted earnings per share * $ 0.25 $ 0.19 $ 0.70 $ 0.59 ========== ========== ========== ========== *Not presented in Financial Statements since dilutive effect is less than 3%.