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Note 6 - Business Acquisitions (Details Textual) - USD ($)				9 Months Ended
	Oct. 24, 2023	Jun. 16, 2023	May 01, 2023	Sep. 30, 2024	Dec. 31, 2023	May 31, 2023
Goodwill				$ 182,380,136	$ 182,380,136
Minimum [Member]
Acquired Property, Plant and Equipment, Weighted Average Useful Life (Year)				4 years
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)				5 years
Maximum [Member]
Acquired Property, Plant and Equipment, Weighted Average Useful Life (Year)				20 years
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)				50 years
The 24th Street Asset Management, LLC [Member] | Boston Omaha Asset Management, LLC [Member]
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Business Combination, Consideration Transferred			$ 5,016,494
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage						48.00%
Payments to Acquire Businesses, Gross			$ 2,759,072
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)			45,644
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value			$ 9,110,478
Goodwill, Acquired During Period			536,626
The 24th Street Asset Management, LLC [Member] | Boston Omaha Asset Management, LLC [Member] | Holdback Cash Consideration [Member]
Payments to Acquire Businesses, Gross			$ 1,254,102
Broadband [Member}
Payments to Acquire Businesses, Gross		$ 2,881,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		844,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		1,046,000
Goodwill		$ 990,500
Broadband [Member} | Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life (Year)		15 years
Cable Systems [Member]
Business Combination, Consideration Transferred	$ 4,375,000
Payments to Acquire Businesses, Gross	3,937,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	1,664,240
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	1,797,000
Goodwill	913,760
Business Combination, Consideration Transferred, Other	$ 437,500
Cable Systems [Member] | Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	15 years

X

- Definition

Weighted average depreciation period of property, plant and equipment acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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