Quarterly report pursuant to Section 13 or 15(d)

Summary of Deferred Revenue (Detail)

v2.4.0.8
Summary of Deferred Revenue (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Deferred Revenue Arrangement [Line Items]    
Undelivered elements (training, installation, and product and support services) $ 1,661 $ 1,723
Extended warranty contracts 1,524 1,506
Total deferred revenue 3,185 3,229
Less long-term amounts:    
Extended warranty contracts (1) (3)
Total deferred revenue, long-term (1) (3)
Total deferred revenue, current portion $ 3,184 $ 3,226