Note 2 - Summary of Significant Accounting Policies (Details Textual)		2 Months Ended	3 Months Ended	12 Months Ended
	Aug. 11, 2022 USD ($) shares	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)
Accounts Receivable, Allowance for Credit Loss, Ending Balance			$ 2,283	$ 2,283	$ 0
Accounts Receivable, Credit Loss Expense (Reversal)				8,841	0
Goodwill, Ending Balance	$ 737,869		737,869	$ 737,869	0
Number of Domain Names Owned				242
Intangible Assets, Net (Excluding Goodwill), Total			1,223,926	$ 1,223,926	0
Amortization of Intangible Assets				31,074	0
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Total	1,476,000		576,000	576,000
Fair Value Adjustment of Warrants				(900,000)	0
Deferred Tax Assets, Goodwill and Intangible Assets	$ 0		1,249,556	1,249,556
Deferred Tax Assets, Net, Total			1,441,234	1,441,234
Deferred Tax Liabilities, Net, Total					0
Deferred Tax Assets, Net of Valuation Allowance, Total			1,679,442	1,679,442	0
Income Tax Expense (Benefit), Total				$ (191,678)	$ (0)	$ 0
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares				2,050,000	0
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants (in shares) | shares				0
Crossing Bridge Advisor LLC [Member] | CrossingBridge Family of Funds [Member]
Assets under Management, Carrying Amount			614	$ 614	$ 514
Crossing Bridge Advisor LLC [Member] | Two 1940 Act Regulated Mutual Funds [Member]
Assets under Management, Carrying Amount			664	664	855
Common Class B [Member]
Stock Issued During Period, Shares, Warrant Exercises (in shares) | shares	1,800,000
Common Stock, Conversion Basis, Number of Shares to be Issued (in shares) | shares	1,800,000
Crossing Bridge Advisor LLC [Member]
Goodwill, Ending Balance			737,869	737,869
Willow Oak Asset Management LLC [Member]
Intangible Assets, Net (Excluding Goodwill), Total			534,195	534,195
Internet Operations Segments [Member]
Intangible Assets, Net (Excluding Goodwill), Total			689,731	689,731
Internet Operations Segments [Member] | Internet Domain Names [Member]
Indefinite-Lived Intangible Assets Acquired		$ 235,000	175,000
Internet Operations [Member]
Contract with Customer, Liability, Total			$ 156,859	$ 156,859	$ 0