Quarterly report pursuant to Section 13 or 15(d)

ACCRUED WARRANTY (Schedule of Change in Accrued Warranty Balance) (Details)

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ACCRUED WARRANTY (Schedule of Change in Accrued Warranty Balance) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
ACCRUED WARRANTY [Abstract]        
Beginning balance $ 6,489 $ 7,904 $ 7,520 $ 7,586
Additional warranties issued 2,018 2,037 5,947 7,240
Adjustments for warranties issued in prior fiscal years 82 364    954
Settlements (2,462) (2,559) (7,340) (8,034)
Ending balance $ 6,127 $ 7,746 $ 6,127 $ 7,746