Certain Financial Statement Information (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Mar. 31, 2013
Schedule of Inventories
Finished goods	$ 5,802	$ 7,247
Work in process	4,778	4,098
Raw materials	2,215	1,555
Inventories, total	$ 12,795	$ 12,900	[1]

[1] Amounts have been derived from the March 31, 2013 audited consolidated financial statements.