XML 39 R28.htm IDEA: XBRL DOCUMENT
v3.20.2

Basis of Presentation (Details Narrative) | 9 Months Ended
--- | ---
Sep. 30, 2020 Number
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Number of venues | 1,080

X
- Definition Number of venues. + References No definition available. + Details
Name: | NTN_NumberOfVenues
Namespace Prefix: | NTN_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration