XML 13 R1.htm IDEA: XBRL DOCUMENT v3.4.0.3
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2016
May. 06, 2016
Document And Entity Information    
Entity Registrant Name NTN BUZZTIME INC  
Entity Central Index Key 0000748592  
Document Type 10-Q  
Document Period End Date Mar. 31, 2016  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   92,439,174
Trading Symbol NTN  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2016