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Note 2 - Basis of Presentation
3 Months Ended
Mar. 31, 2018
Notes to Financial Statements  
Basis of Accounting [Text Block]
2.
Basis of presentation.
The accompanying financial statements, which should be read in conjunction with the audited financial statements and footnotes included in the Company's Form
10
-K for the year ended
December 31, 2017,
as filed with the Securities and Exchange Commission on
April 17, 2018,
have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information. Accordingly, they do
not
include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the
three
months ended
March 31, 2018
are
not
necessarily indicative of the results that
may
be expected for the full year ending
December 31, 2018.