Note 7 - Intangible Assets - Schedule of Future Amortization, Intangible Assets Acquired in Acquisitions (Details) - USD ($)	6 Months Ended
Jun. 30, 2019	Dec. 31, 2018
2020	$ 10,706,938
2021	9,558,867
2022	2,417,715
2023	1,065,620
2024	1,002,588
Thereafter	4,903,084
Total	29,654,812
Customer Relationships [Member]
2020	9,589,975
2021	8,460,912
2022	1,332,260
2023
2024
Thereafter
Total	$ 19,383,147	$ 24,312,336
Intangible assets, weighted average useful life (Month)	1 year 270 days
Permits, Licenses and Lease Acquisition Costs [Member]
2020	$ 869,732
2021	869,732
2022	869,732
2023	869,732
2024	869,732
Thereafter	4,282,897
Total	$ 8,631,557	9,040,336
Intangible assets, weighted average useful life (Month)	9 years 330 days
Site Location [Member]
2020	$ 56,623
2021	56,623
2022	56,623
2023	56,623
2024	56,623
Thereafter	457,937
Total	$ 741,052	769,131
Intangible assets, weighted average useful life (Month)	13 years 30 days
Noncompete Agreements [Member]
2020	$ 122,675
2021	106,700
2022	94,200
2023	74,365
2024	11,333
Thereafter
Total	$ 409,273	468,483
Intangible assets, weighted average useful life (Month)	3 years 120 days
Trademarks and Trade Names [Member]
2020	$ 67,933
2021	64,900
2022	64,900
2023	64,900
2024	64,900
Thereafter	162,250
Total	$ 489,783	$ 526,783
Intangible assets, weighted average useful life (Month)	4 years 300 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 in the next 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 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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