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Note 2 - Summary of Significant Accounting Policies (Details Textual) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Jan. 01, 2019 USD ($) | Sep. 30, 2018 USD ($)
Allowance for Doubtful Accounts Receivable, Current, Ending Balance | $ 50,565 | $ 24,121 |  |
Reserved Receivables | $ 0 | 0 |  |
Number of Reporting Units | 3 |  |  |
Goodwill, Impairment Loss | $ 0 | 0 |  |
Goodwill, Ending Balance | 98,685,795 | 24,692,161 |  |
Prepaid Expense | 2,056,195 | 235,057 |  |
Advertising Agency Commissions | 20,284 | 18,399 |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total | 0 | 0 |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total | 0 | 0 |  |
Accounting Standards Update 2016-02 [Member] | Subsequent Event [Member] |  |  |  |
Operating Lease, Liability, Total |  |  | $ 37,000,000 |
Operating Lease, Right-of-Use Asset |  |  | $ 37,000,000 |
Production Services [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | 561,779 | $ 173,750 |  |
Tammy Lynn Outdoor, LLC, Key Outdoor, Inc and Waitt Outdoor, LLC [Member] |  |  |  |
Goodwill, Ending Balance | $ 73,679,634 |  |  | $ 73,473,634
Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life | 2 years |  |  |
Finite-Lived Intangible Asset, Useful Life | 2 years |  |  |
Land Lease, Prepayment Period | 30 days |  |  |
Lessor, Operating Lease, Term of Contract | 30 days |  |  |
Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |  |
Finite-Lived Intangible Asset, Useful Life | 50 years |  |  |
Land Lease, Prepayment Period | 1 year |  |  |
Lessor, Operating Lease, Term of Contract | 90 days |  |  |

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