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, 2014
Mar. 31, 2014
Inventories    
Raw materials $ 20,322 $ 19,080
Work in process   5
Finished goods 1,639 1,955
Total 21,961 21,040
Less, non-current portion (2,836) (2,938)
Current portion $ 19,125 $ 18,102
Weighted average age of non-current portion of inventories 1 year 9 months 18 days