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Note 5 - Property and Equipment | 3 Months Ended
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Mar. 31, 2021
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | NOTE 5. PROPERTY AND EQUIPMENT Property and equipment consist of the following:
|  | March 31, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
Structures and displays |  | $ | 44,440,750 |  |  | $ | 42,858,525 |
Fiber, towers, and broadband equipment |  |  | 13,222,378 |  |  |  | 11,358,650 |
Vehicles and equipment |  |  | 2,887,970 |  |  |  | 2,522,810 |
Office furniture and equipment |  |  | 2,265,098 |  |  |  | 2,150,729 |
Accumulated depreciation |  |  | (11,505,013 | ) |  |  | (10,382,442 | )
Total Property and Equipment, net |  | $ | 51,311,183 |  |  | $ | 48,508,272 |
Depreciation expense for the three months ended March 31, 2021 and 2020 was $1,146,804 and $831,510, respectively. For the three months ended March 31, 2021 and 2020, we realized losses on the disposition of assets in the amount of $35,567 and $18,919 , respectively.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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