<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
Information taken from the March 31, 1998 Form 10-Q.
</LEGEND>
<MULTIPLIER>                                         1,000
       
<S>                             <C>                      
<PERIOD-TYPE>                   3-MOS                                  
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-START>                                 JAN-01-1998           
<PERIOD-END>                                   MAR-31-1998           
<CASH>                                               3,754                      
<SECURITIES>                                        51,636                      
<RECEIVABLES>                                            0                                        
<ALLOWANCES>                                             0                                        
<INVENTORY>                                              0                                        
<CURRENT-ASSETS>                                    56,575                      
<PP&E>                                              23,593                      
<DEPRECIATION>                                     (11,706)                     
<TOTAL-ASSETS>                                      71,572                      
<CURRENT-LIABILITIES>                                2,843                      
<BONDS>                                              2,200                      
<PREFERRED-MANDATORY>                                    0                                        
<PREFERRED>                                            400                      
<COMMON>                                                24                      
<OTHER-SE>                                          64,403                      
<TOTAL-LIABILITY-AND-EQUITY>                        71,572                      
<SALES>                                                  0                                        
<TOTAL-REVENUES>                                     1,850                      
<CGS>                                                    0                                        
<TOTAL-COSTS>                                        5,584                      
<OTHER-EXPENSES>                                      (831)                     
<LOSS-PROVISION>                                         0                                        
<INTEREST-EXPENSE>                                      90                      
<INCOME-PRETAX>                                     (2,993)                     
<INCOME-TAX>                                             0                                        
<INCOME-CONTINUING>                                 (2,993)                     
<DISCONTINUED>                                           0                                        
<EXTRAORDINARY>                                          0                                        
<CHANGES>                                                0                                        
<NET-INCOME>                                        (2,993)                     
<EPS-PRIMARY>                                        (0.16)                  
<EPS-DILUTED>                                        (0.16)                  
        
                                                                              

</TABLE>