<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> JUN-30-1999 <CASH> 2,633,000 <SECURITIES> 0 <RECEIVABLES> 16,642,000 <ALLOWANCES> (341,000) <INVENTORY> 1,078,000 <CURRENT-ASSETS> 22,787,000 <PP&E> 35,675,000 <DEPRECIATION> 15,534,000 <TOTAL-ASSETS> 68,331,000 <CURRENT-LIABILITIES> 19,235,000 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 17,884,000 <OTHER-SE> 0 <TOTAL-LIABILITY-AND-EQUITY> 68,331,000 <SALES> 38,442,000 <TOTAL-REVENUES> 38,442,000 <CGS> 22,415,000 <TOTAL-COSTS> 22,415,000 <OTHER-EXPENSES> 9,156,000 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,066,000 <INCOME-PRETAX> 5,808,000 <INCOME-TAX> 2,381,000 <INCOME-CONTINUING> 3,427,000 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 3,427,000 <EPS-BASIC> 0.36 <EPS-DILUTED> 0.36