Quarterly report pursuant to Section 13 or 15(d)

Summary of Deferred Revenue (Detail)

v3.8.0.1
Summary of Deferred Revenue (Detail) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Components of deferred revenue    
Undelivered elements (training, installation, and product and support services) $ 1,066 $ 1,404
Extended warranty contracts 1,460 1,487
Deferred royalties 52 142
Total deferred revenue 2,578 3,033
Less long-term amounts:    
Deferred royalties 14 23
Total deferred revenue - long-term 14 23
Total deferred revenue - current $ 2,564 $ 3,010