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Note 7 - Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Accumulated amortization | $ (22,156,126) | $ (20,173,881)
Balance | 31,898,330 |
Total, cost | 57,932,610 | 52,445,462
Intangible assets, net | 35,776,484 | 32,271,581
Easements [Member] |  |
Accumulated amortization | 0 | 0
Balance | 3,878,154 | 2,032,494
Customer Relationships [Member] |  |
Cost | 39,032,900 | 37,743,900
Accumulated amortization | (19,237,453) | (17,890,487)
Balance | 19,795,447 | 19,853,413
Permits, Licenses and Lease Acquisition Costs [Member] |  |
Cost | 10,698,009 | 10,305,521
Accumulated amortization | (1,920,156) | (1,443,337)
Balance | 8,777,853 | 8,862,184
Site Location [Member] |  |
Cost | 849,347 | 849,347
Accumulated amortization | (164,996) | (136,839)
Balance | 684,351 | 712,508
Noncompete Agreements [Member] |  |
Cost | 626,000 | 626,000
Accumulated amortization | (330,564) | (269,318)
Balance | 295,436 | 356,682
Trademarks and Trade Names [Member] |  |
Cost | 1,692,200 | 722,200
Accumulated amortization | (312,387) | (267,900)
Balance | 1,379,813 | 454,300
Technology-Based Intangible Assets [Member] |  |
Cost | 1,128,000 | 138,000
Accumulated amortization | (162,570) | (138,000)
Balance | 965,430 | 0
Nonsolicitation Agreement [Member] |  |
Cost | 28,000 | 28,000
Accumulated amortization | (28,000) | (28,000)
Balance | $ 0 | $ 0

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