Note 7 - Intangible Assets - Schedule of Future Amortization, Intangible Assets Acquired in Acquisitions (Details) - USD ($)	6 Months Ended
Jun. 30, 2020	Dec. 31, 2019
2021	$ 3,862,948
2022	3,729,539
2023	3,709,781
2024	3,646,587
2025	3,632,783
Thereafter	13,316,692
Total	31,898,330
Customer Relationships [Member]
2021	2,500,221
2022	2,379,935
2023	2,379,935
2024	2,379,935
2025	2,379,935
Thereafter	7,775,486
Total	$ 19,795,447	$ 19,853,413
Intangible assets, weighted average useful life (Month)	85 months
Permits, Licenses and Lease Acquisition Costs [Member]
2021	$ 984,381
2022	984,381
2023	984,381
2024	984,381
2025	983,602
Thereafter	3,856,727
Total	$ 8,777,853	8,862,184
Intangible assets, weighted average useful life (Month)	108 months
Site Location [Member]
2021	$ 56,623
2022	56,623
2023	56,623
2024	56,623
2025	56,623
Thereafter	401,236
Total	$ 684,351	712,508
Intangible assets, weighted average useful life (Month)	145 months
Noncompete Agreements [Member]
2021	$ 109,323
2022	96,200
2023	76,442
2024	13,248
2025	223
Thereafter	0
Total	$ 295,436	356,682
Intangible assets, weighted average useful life (Month)	28 months
Technology-Based Intangible Assets [Member]
2021	$ 99,000
2022	99,000
2023	99,000
2024	99,000
2025	99,000
Thereafter	470,430
Total	$ 965,430	0
Intangible assets, weighted average useful life (Month)	117 months
Trademarks and Trade Names [Member]
2021	$ 113,400
2022	113,400
2023	113,400
2024	113,400
2025	113,400
Thereafter	812,813
Total	$ 1,379,813	$ 454,300
Intangible assets, weighted average useful life (Month)	110 months

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 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
-SubTopic 30
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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