Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Deferred Revenue (Details)

v3.20.1
Revenue Recognition - Deferred Revenue (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]    
Deferred extended maintenance and support $ 2,628 $ 2,837
Deferred royalties 285 290
Deferred device and rental revenues 44 131
Customer deposits and advances 12 23
Total deferred revenues 2,969 3,281
Less current portion (1,231) (1,492)
Deferred revenues, non-current $ 1,738 $ 1,789