Annual report pursuant to Section 13 and 15(d)

Accrued Warranty Reserve (Details)

v2.4.1.9
Accrued Warranty Reserve (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2013
Accrued Warranty Reserve      
Balance at the beginning of the period $ 2,965us-gaap_StandardProductWarrantyAccrual $ 2,299us-gaap_StandardProductWarrantyAccrual $ 1,494us-gaap_StandardProductWarrantyAccrual
Standard warranty provision 3,516us-gaap_StandardProductWarrantyAccrualWarrantiesIssued 2,857us-gaap_StandardProductWarrantyAccrualWarrantiesIssued 3,874us-gaap_StandardProductWarrantyAccrualWarrantiesIssued
Changes for accrual related to reliability repair programs (53)us-gaap_StandardProductWarrantyAccrualPreexistingIncreaseDecrease 1,046us-gaap_StandardProductWarrantyAccrualPreexistingIncreaseDecrease 1,255us-gaap_StandardProductWarrantyAccrualPreexistingIncreaseDecrease
Deductions for warranty claims (3,245)us-gaap_StandardProductWarrantyAccrualPayments (3,237)us-gaap_StandardProductWarrantyAccrualPayments (4,324)us-gaap_StandardProductWarrantyAccrualPayments
Balance at the end of the period $ 3,183us-gaap_StandardProductWarrantyAccrual $ 2,965us-gaap_StandardProductWarrantyAccrual $ 2,299us-gaap_StandardProductWarrantyAccrual