Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Deferred Revenue (Details)

v3.10.0.1
Revenue Recognition - Deferred Revenue (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Revenue from Contract with Customer [Abstract]    
Deferred extended maintenance and support $ 2,358 $ 1,763
Deferred rental income 32 73
Customer deposits and advances 56 52
Deferred device revenues 34 31
Total deferred revenues 2,480 1,919
Less current portion (945) (1,103)
Deferred revenues, non-current $ 1,535 $ 816