Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Mar. 31, 2013
Components of inventories    
Raw materials $ 7,970 $ 7,021
Finished goods and sub-assemblies 11,543 7,234
Reserve for excess and obsolete inventory and net realizable value (2,410) (2,032)
Total inventories $ 17,103 $ 12,223