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Note 16 - Subsequent Events	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 16. SUBSEQUENT EVENTS During the first quarter of 2019, we purchased six billboard structures, in three separate transactions, for $597,050.   Subsequent to December 31, 2018, Cowen sold an additional 147,438 shares of our Class A common stock, under the “at the market” Sales Agreement, resulting in net proceeds to us of $3,585,121. (See Note 12 )

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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