Quarterly report pursuant to Section 13 or 15(d)

ACCRUED LIABILITIES AND DEFERRED REVENUE - Summary of Deferred Revenue (Detail)

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ACCRUED LIABILITIES AND DEFERRED REVENUE - Summary of Deferred Revenue (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Deferred Revenue    
Undelivered elements (training, installation and product and support services) $ 1,526 $ 1,105
Extended warranty contracts 1,469 1,056
Total deferred revenue 2,995 2,161
Less long-term amounts:    
Extended warranty contracts (5) (25)
Total deferred revenue, long-term (5) (25)
Total deferred revenue, current portion $ 2,990 $ 2,136