Note 7 - Intangible Assets - Schedule of Future Amortization, Intangible Assets Acquired in Acquisitions (Details) - USD ($)	3 Months Ended
Mar. 31, 2020	Dec. 31, 2019
2020	$ 3,991,854
2021	3,754,135
2022	3,740,050
2023	3,686,302
2024	3,657,518
Thereafter	13,847,355
Total	32,677,214
Customer Relationships [Member]
2020	2,683,287
2021	2,462,235
2022	2,462,235
2023	2,462,235
2024	2,462,235
Thereafter	8,775,679
Total	$ 21,307,906	$ 19,853,413
Intangible assets, weighted average useful life (Month)	7 years 150 days
Permits, Licenses and Lease Acquisition Costs [Member]
2020	$ 975,927
2021	975,927
2022	975,927
2023	975,927
2024	975,927
Thereafter	4,057,864
Total	$ 8,937,499	8,862,184
Intangible assets, weighted average useful life (Month)	9 years 90 days
Site Location [Member]
2020	$ 56,623
2021	56,623
2022	56,623
2023	56,623
2024	56,623
Thereafter	415,237
Total	$ 698,352	712,508
Intangible assets, weighted average useful life (Month)	12 years 120 days
Noncompete Agreements [Member]
2020	$ 114,117
2021	97,450
2022	83,365
2023	29,617
2024	833
Thereafter
Total	$ 325,382	356,682
Intangible assets, weighted average useful life (Month)	2 years 210 days
Trademarks and Trade Names [Member]
2020	$ 161,900
2021	161,900
2022	161,900
2023	161,900
2024	161,900
Thereafter	598,575
Total	$ 1,408,075	$ 454,300
Intangible assets, weighted average useful life (Month)	7 years 30 days

Weighted average amortization period of finite-lived intangible assets 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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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