EXHIBIT 11 COMPUTATIONS OF EARNINGS PER SHARE (in thousands except earnings per share) (unaudited) For the three months ended March 31, 1998 1997 Shares used in the computation of earnings per share: Shares used in the computation of basic earnings per share 4,659,029 4,641,833 =============== ================ Shares used in the computation of diluted earnings per share 4,851,658 4,821,344 =============== ================ Net income used in the computation of earnings per common share $ 1,930 $ 1,564 =============== ================ Basic earnings per common share $ 0.41 $ 0.34 =============== ================ Diluted earnings per common share $ 0.40 $ 0.32 =============== ================