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v3.22.1

Note 2 - Summary of Significant Accounting Policies (Details Textual) |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Oct. 01, 2021 USD ($) | Jan. 01, 2021 | Oct. 26, 2020 shares | Oct. 01, 2020 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Accounts Receivable, Allowance for Credit Loss, Current |  |  |  |  | $ 121,022 | $ 328,522
Number of Reporting Units |  |  |  |  | 4 |
Goodwill, Impairment Loss | $ 0 |  |  | $ 0 |  |
Goodwill, Ending Balance |  |  |  |  | $ 151,336,976 | 124,446,446
Ceded Premiums Earned |  |  |  |  | 652,885 | 595,750
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total |  |  |  |  | 0 | 0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total |  |  |  |  | 0 | 0
Yellowstone Acquisition Company [Member] | Common Class A [Member] | IPO [Member] |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares |  |  | 13,598,898 |  |  |
Tammy Lynn Outdoor, LLC, Key Outdoor, Inc and Waitt Outdoor, LLC [Member] |  |  |  |  |  |
Goodwill, Ending Balance |  |  |  |  | $ 25,400,000 | $ 18,150,000
Minimum [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  |  |  | 4 years |
Finite-Lived Intangible Asset, Useful Life (Year) |  | 2 years |  |  | 2 years |
Lessor, Operating Lease, Term of Contract (Month) |  |  |  |  |  | 1 month
Maximum [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  |  |  | 20 years |
Finite-Lived Intangible Asset, Useful Life (Year) |  | 50 years |  |  | 50 years |
Lessor, Operating Lease, Term of Contract (Month) |  |  |  |  |  | 3 years
Billboard Rentals [Member] |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current |  |  |  |  | $ 110,721 | $ 217,871
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  | 31,499,235 | 28,260,964
Broadband Services [Member] |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current |  |  |  |  | 10,301 | 110,651
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  | 15,234,266 | 3,836,537
Production Services [Member] |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  | $ 1,677,415 | $ 1,373,339

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