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Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Property, Plant and Equipment, Useful Life [Table Text Block]

		Years
Structures			15
Digital displays and electrical			10
Static and tri-vision displays			10 to 15
Fiber, towers, and broadband equipment			5 to 20
Vehicles, equipment, and furniture			4 to 7

Schedule of Finite-Lived Intangible Assets [Table Text Block]

		Years
Customer relationships			10 to 15
Permits, licenses, and lease acquisition costs			10 to 50
Noncompetition and nonsolicitation agreements			5
Technology, trade names, and trademarks			10 to 20
Site location			15
Capitalized contract costs			10

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Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ 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)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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