Note 1 - Summary of Significant Accounting Policies (Details Textual)		12 Months Ended
	Apr. 23, 2023 $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 06, 2024 $ / shares	May 02, 2024 $ / shares	Feb. 13, 2024 $ / shares	Jan. 18, 2024 USD ($)	Apr. 23, 2023 ₪ / shares shares	Apr. 22, 2023 $ / shares shares	Apr. 22, 2023 ₪ / shares shares	Dec. 31, 2021 USD ($) shares
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares		$ 0.0001	$ 0.0001		$ 0.0001	$ 0.2
Share Price (in ILS per share) | (per share)	$ 0.2			$ 0.94				₪ 0.6	$ 0.02	₪ 0.06
Common Stock, Shares, Outstanding (in shares) | shares	2,688,541	4,887,531	2,863,734					2,688,541	26,881,244	26,881,244
Common Stock, Shares Authorized (in shares) | shares	9,290,000	100,000,000	100,000,000					9,290,000	92,900,000	92,900,000
Accounts Receivable, Allowance for Credit Loss		$ 0	$ 0
Depreciation		7,152	10,289
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment		$ 31,911	24,759
Operating Lease, Weighted Average Discount Rate, Percent		7.20%
Finite-Lived Intangible Asset, Useful Life (Year)		3 years
Capitalized Computer Software, Net		$ 0	273,999
Goodwill, Impairment Loss			1,615,167
Continuing Operations [Member]
Marketing and Advertising Expense		214,325	675,496
Discontinued Operations [Member]
Marketing and Advertising Expense		$ 12,491	$ 176,224
Software Development Costs [Member]
Finite-Lived Intangible Asset, Useful Life (Year)		5 years
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)		3 years
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)		7 years
Quintar, Inc. [Member]
Investment Owned, Cost											$ 200,000
Investment Owned, Balance, Shares (in shares) | shares											280,903
Investment Owned, Net Assets, Percentage											1.12%
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	10
SharpLink US [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares		$ 0.0001
Sports Technologies, LLC, SHGN and Holdings Quinn, LLC [Member] | RSports Interactive, Inc. [Member]
Disposal Group, Including Discontinued Operation, Consideration		$ 22,500,000					$ 22,500,000
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents							18,857,834
Disposal Group, Including Discontinued Operation, Consideration, Gross		41,357,834					41,357,834
Disposal Group, Including Discontinued Operation, Customer Deposits Liability		36,959,573					36,959,573
Disposal Group, Including Discontinued Operation, Deferred Revenue, Current		$ 4,888,704					$ 4,888,704