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Note 11 - Stockholders' Equity (Details Textual)	3 Months Ended			12 Months Ended				24 Months Ended
Note 11 - Stockholders' Equity (Details Textual)	Mar. 31, 2021 $ / shares shares	Mar. 31, 2021 $ / shares $ / shares shares	Mar. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares $ / shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2015	Dec. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2021 $ / shares shares
Common Stock, Dividends, Per Share, Declared (in dollars per share) \| $ / shares					$ 0
Common Stock, No Par Value (in dollars per share) \| $ / shares				$ 0	$ 0	$ 0		$ 0
Stock Issued During Period, Value, New Issues \| $						$ 2,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)					2,745,000	0
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in CAD per share) \| $ / shares					$ 0.33
Share-based Payment Arrangement, Expense \| $					$ 158,883	$ 15,890
Subsequent Event [Member]
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in CAD per share) \| (per share)	$ 0.50	$ 0.39
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares (in shares)	35,000	35,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price (in CAD per share) \| (per share)	$ 0.50	$ 0.50							$ 0.39
Share-based Payment Arrangement, Option [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)	1,040,000	1,040,000							1,040,000
Share-based Payment Arrangement, Option [Member] \| Vesting at the Grant Date [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	10.00%	10.00%
Share-based Payment Arrangement, Option [Member] \| Vesting One Year Following the Grant Date [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	15.00%	15.00%
Share-based Payment Arrangement, Option [Member] \| Vesting Per Month after One Year [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	2.00%	2.00%
2015 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum							10.00%
Common Stock, Capital Shares Reserved for Future Issuance, Percentage				2.00%	2.00%		10.00%	2.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)					2,935,000			2,130,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value \| $				$ 137,250	$ 137,250	0		$ 137,250
Share-based Payment Arrangement, Expense \| $					$ 158,883	$ 15,890
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) \| $ / shares					$ 0.27	$ 0.29
2015 Stock Option Plan [Member] \| Vesting Per Month Commencing June 30, 2021 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage					2.08%
2015 Stock Option Plan [Member] \| Employee Stock Options 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)					90,000
2015 Stock Option Plan [Member] \| Employee Stock Options 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)					2,595,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in CAD per share) \| (per share)				$ 0.45	$ 0.33
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares (in shares)					60,000
2015 Stock Option Plan [Member] \| Employees, and Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)					2,745,000
2015 Stock Option Plan [Member] \| Directors and Officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)					1,250,000
2015 Stock Option Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)							10 years
Kidoz [Member]
Payments of Stock Issuance Costs \| $						$ 60,228
Stock Issued During Period, Shares, Acquisitions (in shares)			52,450,286
Business Combination, Consideration Transferred, Total \| $			$ 20,603,655			$ 20,603,655
Private Placement [Member]
Stock Issued During Period, Value, New Issues \| $			$ 2,000,000
Stock Issued During Period, Shares, New Issues (in shares)			5,000,000
Shares Issued, Price Per Share (in dollars per share) \| $ / shares			$ 0.40
Private Placement [Member] \| Commission Fees [Member]
Payments of Stock Issuance Costs \| $			$ 200,000
Private Placement [Member] \| Other Stock Issuance Fees [Member]
Payments of Stock Issuance Costs \| $			$ 36,800