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Note 17 - Redeemable Noncontrolling Interest (Details Textual)	Apr. 02, 2024 USD ($) shares
Equity of FIF Utah [Member]
Ownership Interest Percentage	100.00%
Equity of FIF Utah [Member] | Chief Executive Officer at Boston Omaha Broadband [Member]
Business Acquisition, Percentage of Voting Interests Acquired	17.00%
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares	275,611
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | $	$ 4,400,000
FIF St George, LLC [Member]
Business Acquisition, Percentage of Voting Interests Acquired	20.00%
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares	563,750
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | $	$ 9,000,000

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+ References

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-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-Publisher FASB
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-Section 30
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