XML 48 R35.htm IDEA: XBRL DOCUMENT
v3.20.4

Organization of Company (Details Narrative) | 12 Months Ended
--- | ---
Dec. 31, 2020 Number
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Number of venues | 1,036
Percentage of entertainment network | 18.00%

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
- Definition Percentage of Entertainment Network. + References No definition available. + Details
Name: | NTN_PercentageOfEntertainmentNetwork
Namespace Prefix: | NTN_
Data Type: | num:percentItemType
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