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Note 20 - Subsequent Events	6 Months Ended
Note 20 - Subsequent Events	Jun. 30, 2018
Notes to Financial Statements
Subsequent Events [Text Block]	20 . Subsequent Events The Company has evaluated the effect of events that have occurred subsequent to June 30, 2018, through the date of issuance of the consolidated financial statements, and there have been no material events that would require recognition in the consolidated financial statements or disclosure in the notes to the consolidated financial statements.