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Certain Financial Statement Information (Details 13) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Schedule of Warranty Reserve Activity
Beginning balance	$ 203	$ 447	$ 220	$ 454
Charged to costs of revenues	(11)	85	(26)	215
Charges incurred	(5)	(162)	(7)	(299)
Ending balance	$ 187	$ 370	$ 187	$ 370

- 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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