Note 7 - Intangible Assets - Schedule of Future Amortization, Intangible Assets Acquired in Acquisitions (Details) - USD ($)	9 Months Ended
Sep. 30, 2019	Dec. 31, 2018
2020	$ 11,245,615
2021	10,114,141
2022	2,800,401
2023	1,122,606
2024	1,059,747
Thereafter	4,917,775
Total	31,260,285
Customer Relationships [Member]
2020	10,065,957
2021	8,951,436
2022	1,647,446
2023
2024
Thereafter
Total	$ 20,664,839	$ 24,312,336
Intangible assets, weighted average useful life (Month)	1 year 240 days
Permits, Licenses and Lease Acquisition Costs [Member]
2020	$ 936,232
2021	936,232
2022	936,232
2023	936,232
2024	936,232
Thereafter	4,328,085
Total	$ 9,009,245	9,040,336
Intangible assets, weighted average useful life (Month)	9 years 240 days
Site Location [Member]
2020	$ 56,623
2021	56,623
2022	56,623
2023	56,623
2024	56,623
Thereafter	443,665
Total	$ 726,780	769,131
Intangible assets, weighted average useful life (Month)	12 years 300 days
Noncompete Agreements [Member]
2020	$ 121,145
2021	104,950
2022	95,200
2023	64,851
2024	1,992
Thereafter
Total	$ 388,138	468,483
Intangible assets, weighted average useful life (Month)	3 years 30 days
Trademarks and Trade Names [Member]
2020	$ 65,658
2021	64,900
2022	64,900
2023	64,900
2024	64,900
Thereafter	146,025
Total	$ 471,283	$ 526,783
Intangible assets, weighted average useful life (Month)	4 years 240 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 of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the second 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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