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Note 7 - Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Accounts payable and accrued expenses $ 242,113 $ 88,381
Accrued interest 82,569 50,748
Accrued payroll 36,381 84,976
Total accounts payable and accrued expenses $ 361,063 $ 224,105