Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Sep. 30, 2013
Mar. 31, 2013
Inventories    
Raw materials $ 22,241 $ 20,198
Finished goods 1,569 1,567
Total 23,810 21,765
Less, non-current portion (2,980) (3,252)
Current portion $ 20,830 $ 18,513
Weighted average age of non-current portion of inventories 1 year 8 months 12 days