Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

v3.19.3
Summary of Significant Accounting Policies (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2019
USD ($)
customer
Dec. 31, 2018
USD ($)
Summary of Significant Accounting Policies (Textual)      
Number of customers per impressions | customer   1,000  
Restricted cash $ 0 $ 0 $ 5,500,000
Cash equivalents, at carrying value     0
Deferred revenue recognized 1,321,000 2,863,000  
Accounts Receivable      
Summary of Significant Accounting Policies (Textual)      
Allowance for doubtful accounts $ 3,089,000 $ 3,089,000 $ 3,089,000
Minimum      
Summary of Significant Accounting Policies (Textual)      
Term of license subscription agreement   6 months  
Maximum      
Summary of Significant Accounting Policies (Textual)      
Term of license subscription agreement   60 months