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Note 4 - Accrued Expenses (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | 2017 |  |  | 2016 |
Accrued management salaries |  | $ | 532,615 |  |  | $ | 201,170 |
Accrued directors ’ fees |  |  | 182,620 |  |  |  | 78,070 |
Other accrued expenses |  |  | 18,476 |  |  |  | 15,000 |
Total accrued expenses |  | $ | 733,711 |  |  | $ | 294,240 |

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