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Note 6 - Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Accrued management salaries $ 1,026,467 $ 924,509
Accrued directors’ fees 333,870 295,670
Other accrued expenses 18,373 18,373
Total accrued expenses $ 1,378,710 $ 1,238,552