<PAGE>
Exhibit 11. Computation of Earnings Per Common Share
<TABLE>
<CAPTION>
--------------------------------------------------------------------------------
(Dollars in Thousands Except Per Share Data
and Number of Shares)
--------------------------------------------------------------------------------
<S> <C> <C> <C>
Weighted Average
Three-Month Periods Ended Number of Shares Net Earnings Per
September 30, Outstanding Income Common Share
--------------------------------------------------------------------------------
2000 10,036,853 $ 7,094 $ 0.71
1999 10,078,294 6,398 0.63
--------------------------------------------------------------------------------
</TABLE>
<TABLE>
<CAPTION>
--------------------------------------------------------------------------------
(Dollars in Thousands Except Per Share Data
and Number of Shares)
--------------------------------------------------------------------------------
<S> <C> <C> <C>
Weighted Average
Nine-Month Periods Ended Number of Shares Net Earnings Per
September 30, Outstanding Income Common Share
--------------------------------------------------------------------------------
2000 10,051,086 $11,425 $ 1.14
1999 10,083,729 9,903 0.98
--------------------------------------------------------------------------------
</TABLE>
Computation of weighted average number of common
and common equivalent shares:
<TABLE>
<CAPTION>
--------------------------------------------------------------------------------
Three-Month Periods Ended September 30, 2000 1999
--------------------------------------------------------------------------------
<S> <C> <C>
Common shares outstanding beginning of the period 10,056,499 10,078,539
Weighted average of the common
shares purchased and retired or reissued (19,646) (245)
--------------------------------------------------------------------------------
Weighted average number of common shares 10,036,853 10,078,294
================================================================================
</TABLE>
<TABLE>
<CAPTION>
--------------------------------------------------------------------------------
Nine-Month Periods Ended September 30, 2000 1999
--------------------------------------------------------------------------------
<S> <C> <C>
Common shares outstanding beginning of the period 10,060,084 10,091,721
Weighted average of the common
shares purchased and retired or reissued (8,998) (7,992)
--------------------------------------------------------------------------------
Weighted average number of common shares 10,051,086 10,083,729
================================================================================
</TABLE>
18
