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Note 6 - Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
Mar. 31, 2018
Dec. 31, 2017
Accrued management salaries $ 623,289 $ 532,615
Accrued directors’ fees 214,819 182,620
Other accrued expenses 26,250 18,476
Total accrued expenses $ 864,358 $ 733,711