Note 7 - Intangible Assets - Intangible Assets (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Cost	$ 3,270,456	$ 3,270,456
Accumulated amortization	1,019,467	463,394
Net book value	2,250,989	2,807,062
Ad Tech Technology [Member]
Cost	1,877,415	1,877,415
Accumulated amortization	688,386	312,902
Net book value	1,189,029	1,564,513
Kidoz OS Technology [Member]
Cost	31,006	31,006
Accumulated amortization	18,948	8,613
Net book value	12,058	22,393
Customer Relationships [Member]
Cost	1,362,035	1,362,035
Accumulated amortization	312,133	141,879
Net book value	$ 1,049,902	$ 1,220,156