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Certain Financial Statement Information (Details 13) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Schedule of Warranty Reserve Activity
Beginning balance	$ 220	$ 454
Charged to costs of revenues	(15)	130
Charges incurred	(2)	(137)
Ending balance	$ 203	$ 447

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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