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Note 8 - Intangible Assets - Schedule of Future Amortization, Intangible Assets (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2019
Dec. 31, 2020
2021   $ 4,611,636
2022   4,600,802
2023   4,556,536
2024   4,511,836
2025   4,497,428
Thereafter   17,088,582
Total   39,866,820
Customer Relationships [Member]    
2021   3,132,966
2022   3,132,966
2023   3,132,966
2024   3,132,966
2025   3,132,966
Thereafter   10,516,902
Total $ 19,853,413 $ 26,181,732
Finite-lived intangible assets, useful life (Year) 10 years  
Customer Relationships [Member] | Weighted Average [Member]    
Finite-lived intangible assets, useful life (Year)   100 months
Permits, Licenses and Lease Acquisition Costs [Member]    
2021   $ 1,012,947
2022   1,012,947
2023   1,012,947
2024   1,012,947
2025   999,939
Thereafter   3,589,633
Total $ 8,862,184 $ 8,641,360
Permits, Licenses and Lease Acquisition Costs [Member] | Weighted Average [Member]    
Finite-lived intangible assets, useful life (Year)   102 months
Site Location [Member]    
2021   $ 56,623
2022   56,623
2023   56,623
2024   56,623
2025   56,623
Thereafter   372,770
Total 712,508 $ 655,885
Finite-lived intangible assets, useful life (Year)   15 years
Site Location [Member] | Weighted Average [Member]    
Finite-lived intangible assets, useful life (Year)   139 months
Noncompete Agreements [Member]    
2021   $ 101,200
2022   90,366
2023   46,100
2024   1,400
2025   0
Thereafter   0
Total 356,682 $ 239,066
Noncompete Agreements [Member] | Weighted Average [Member]    
Finite-lived intangible assets, useful life (Year)   26 months
Technology-Based Intangible Assets [Member]    
2021   $ 99,000
2022   99,000
2023   99,000
2024   99,000
2025   99,000
Thereafter   420,750
Total 0 $ 915,750
Technology-Based Intangible Assets [Member] | Weighted Average [Member]    
Finite-lived intangible assets, useful life (Year)   111 months
Trademarks and Trade Names [Member]    
2021   $ 208,900
2022   208,900
2023   208,900
2024   208,900
2025   208,900
Thereafter   2,188,527
Total $ 454,300 $ 3,233,027
Trademarks and Trade Names [Member] | Weighted Average [Member]    
Finite-lived intangible assets, useful life (Year)   186 months