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WARRANTY COSTS AND OTHER CONTINGENCIES (Tables)
3 Months Ended
Mar. 31, 2014
WARRANTY COSTS AND OTHER CONTINGENCIES  
Schedule of analysis of warranty accruals
(in thousands)
 
2014
   
2013
 
Balance at beginning of period
  $ 3,410     $ 2,522  
Less: Payments made during the period
    (309 )     (496 )
Add:  Warranty provision for the period
    731       662  
          Changes to warranty provision for prior periods
    70       87  
Balance at March 31
  $ 3,902     $ 2,775