<ARTICLE> 5
<LEGEND>
This schedule contains financial information extracted from the Company's
Consolidated Income Statement, Consolidated Balance Sheet and Consolidated
Statement of Cash Flows and is qualified in its entirety by reference to Form
10-Q for the period ended September 30, 1997.
</LEGEND>
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-END>                               SEP-30-1997
<CASH>                                          711425
<SECURITIES>                                  23600089
<RECEIVABLES>                                  6257797
<ALLOWANCES>                                    231000
<INVENTORY>                                    1847624
<CURRENT-ASSETS>                              32808318
<PP&E>                                         5624501
<DEPRECIATION>                                 2988902
<TOTAL-ASSETS>                                36348203
<CURRENT-LIABILITIES>                          3699757
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         82646
<OTHER-SE>                                    32565800
<TOTAL-LIABILITY-AND-EQUITY>                  36348203
<SALES>                                       13004457
<TOTAL-REVENUES>                              13004457
<CGS>                                          3437806
<TOTAL-COSTS>                                 12062134
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                            (416642)
<INCOME-PRETAX>                                1358965
<INCOME-TAX>                                   1358965
<INCOME-CONTINUING>                            1358965
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   1358965
<EPS-PRIMARY>                                     0.17
<EPS-DILUTED>                                     0.17