Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.19.1
Summary of Significant Accounting Policies (Details Textual)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2019
USD ($)
Customers
Mar. 31, 2018
Dec. 31, 2018
USD ($)
Summary of Significant Accounting Policies (Textual)      
Number of customers per impressions | Customers 1,000    
Restricted cash   $ 5,500
Allowance for doubtful accounts     3,276
Decrease to accumulated deficit     1,087
Decrease in total liabilities related to deferred revenue     718
Increase in total assets related to deferred costs for sales commissions     369
Decrease to net revenues 182    
Increase of sales and marketing expense 46    
Increase to prepaid expenses 323    
Decrease of current deferred revenue 321    
Decrease of long term deferred revenue 215    
Accounts Receivable [Member]      
Summary of Significant Accounting Policies (Textual)      
Allowance for doubtful accounts $ 3,089   $ 3,089
Fox Networks Group [Member]      
Summary of Significant Accounting Policies (Textual)      
Concentration total revenue, percentage 63.00% 66.00%  
Fox Networks Group [Member] | Accounts receivable [Member]      
Summary of Significant Accounting Policies (Textual)      
Concentration total revenue, percentage 58.00%   66.00%
Houston Methodis [Member]      
Summary of Significant Accounting Policies (Textual)      
Concentration total revenue, percentage 13.00%    
Minimum [Member]      
Summary of Significant Accounting Policies (Textual)      
Term of license subscription agreement 6 months    
Maximum [Member]      
Summary of Significant Accounting Policies (Textual)      
Term of license subscription agreement 60 months