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Note 7 - Payroll Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | December 31, 2018 |  |  | December 31, 2017 |
Accrued bonus payable |  | $ | 697,995 |  |  | $ | 566,000 |
Accrued vacation |  |  | 160,740 |  |  |  | 147,861 |
Accrued payroll liabilities |  |  | 76,335 |  |  |  | 71,006 |
Total payroll liabilities |  | $ | 935,070 |  |  | $ | 784,867 |

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