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
Jun. 30, 2014
Jun. 30, 2013
ACCRUED WARRANTY [Abstract]    
Beginning balance $ 6,116 $ 7,520
Additional warranties issued 1,728 2,142
Adjustments for warranties issued in prior fiscal years 383 (60)
Settlements (2,329) (2,587)
Ending balance $ 5,898 $ 7,015