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Disposition of Site Equipment to Be Installed and Fixed Assets (Details Narrative) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Property, Plant and Equipment [Abstract]
Write off equipment	$ 188

X

- Definition

Write off equipment.

+ References

No definition available.

+ Details

Name:	NTN_WriteOffEquipment
Namespace Prefix:	NTN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration