Quarterly report pursuant to Section 13 or 15(d)

Revenue - Schedule of Contract Assets and Liabilities (Details)

v3.8.0.1
Revenue - Schedule of Contract Assets and Liabilities (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Jan. 02, 2018
Dec. 31, 2017
Account receivables, net of allowance $ 4,762    
Unbilled receivables - current 4,574    
Unbilled receivables - non-current 92    
Deferred revenue 4,620 $ 5,083 $ 4,311
January 1, 2018 [Member]      
Account receivables, net of allowance 7,940    
Unbilled receivables - current 4,574    
Unbilled receivables - non-current 184    
Deferred revenue 5,083    
Year-to-date Change [Member]      
Account receivables, net of allowance (3,178)    
Unbilled receivables - current 27    
Unbilled receivables - non-current (92)    
Deferred revenue $ (463)    
Changes in Account receivables, net of allowance, percentage (40.00%)    
Changes in Unbilled receivables - current, percentage 0.60%    
Changes in Unbilled receivables - non-current, percentage (50.00%)    
Changes in Deferred revenue, percentage (9.10%)