Note 4 - Merger and Business Combination with CrossingBridge Advisors, LLC and Enterprise Diversified, Inc. (Details Textual) - USD ($)		3 Months Ended
	Aug. 11, 2022	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Business Combination, Acquisition Related Costs		$ 252,000		$ (0)
Notes Receivable, Fair Value Disclosure	$ 300,000		$ 50,000
Deferred Tax Assets, Goodwill and Intangible Assets	0		1,249,556
Goodwill, Period Increase (Decrease), Total			939,556
Goodwill, Fair Value Disclosure	1,677,425		737,869
Internet Domain Names [Member]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	$ 235,000		$ 175,000
Cohanzick, Enterprise Diversified Officers and Directors [Member]
Stock Issued During Period, Shares, New Issues (in shares)	405,000
Shares Issued, Price Per Share (in dollars per share)	$ 5.369
Common Class A [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.0001	$ 0.0001
Common Class B [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.0001
Common Stock, Director Designation, Minimum Beneficial Ownership	5.00%
Common Stock, Number of Directors to Designate	1
Merger Agreement [Member]
Common Stock, Number of Directors to Designate	1
Business Combination, Percent of Stock Float	18.00%
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 15,100,000
Business Combination, Market Cap of Business Acquired	$ 14,500,000
Share Price (in dollars per share)	$ 5.49
Business Combination, Consideration Transferred, Total	$ 18,637,576
Merger Agreement [Member] | Cohanzick [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001
Business Combination, Acquisition Related Costs	$ 470,329
Merger Agreement [Member] | Cohanzick [Member] | Class W-1 Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	1,800,000
Warrants and Rights Outstanding, Term (Year)	5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 8.00
Merger Agreement [Member] | Cohanzick [Member] | Class W-2 Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	250,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 8.00
Merger Agreement [Member] | Common Class A [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001
Merger Agreement [Member] | Common Class A [Member] | Cohanzick [Member]
Stock Issued During Period, Shares, Acquisitions (in shares)	2,400,000
Merger Agreement [Member] | Common Class B [Member]
Stock Issued During Period, Shares, Acquisitions (in shares)	1,800,000
Merger Agreement [Member] | Common Class B [Member] | Cohanzick [Member]
Stock Issued During Period, Shares, Acquisitions (in shares)	1,800,000