Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

v3.19.2
Summary of Significant Accounting Policies (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
customer
Jun. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Summary of Significant Accounting Policies (Textual)      
Number of customers per impressions | customer 1,000    
Restricted cash $ 0 $ 0 $ 5,500
Cash equivalents, at carrying value 0 0  
Accounts Receivable      
Summary of Significant Accounting Policies (Textual)      
Allowance for doubtful accounts $ 3,089 $ 3,089 $ 3,089
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