<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the Balance
Sheet and statement of operations found on pages 2, 3 and 4 of the company's
form 10-QSB for the year-to-date, and is qualified in its entirety by reference
to such financial statements.
</LEGEND>
<MULTIPLIER>   1000
       
                                  
<PERIOD-TYPE>                                 6-MOS
<FISCAL-YEAR-END>                       APR-30-1999
<PERIOD-END>                            OCT-31-1998
<CASH>                                          992
<SECURITIES>                                    432
<RECEIVABLES>                                 1,477
<ALLOWANCES>                                     91
<INVENTORY>                                   1,340
<CURRENT-ASSETS>                              4,571
<PP&E>                                        7,484
<DEPRECIATION>                                4,485
<TOTAL-ASSETS>                                7,805
<CURRENT-LIABILITIES>                         1,504
<BONDS>                                           0
<COMMON>                                         42
<PREFERRED-MANDATORY>                             0
<PREFERRED>                                       0
<OTHER-SE>                                    6,108
<TOTAL-LIABILITY-AND-EQUITY>                  7,805
<SALES>                                       4,949
<TOTAL-REVENUES>                              4,949
<CGS>                                         2,884
<TOTAL-COSTS>                                 2,884
<OTHER-EXPENSES>                              1,950
<LOSS-PROVISION>                                  5
<INTEREST-EXPENSE>                                0
<INCOME-PRETAX>                                 193
<INCOME-TAX>                                     33
<INCOME-CONTINUING>                             160
<DISCONTINUED>                                    0
<EXTRAORDINARY>                                   0
<CHANGES>                                         0
<NET-INCOME>                                    160
<EPS-PRIMARY>                                   .04
<EPS-DILUTED>                                   .04