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Note 5 - Other Accrued Expenses and Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2016
Notes Tables |
Other Current Liabilities [Table Text Block] |
|  | September 30, 2016 |  |  | December 31, 2015 |
Accrued interest payable |  | $ | 927 |  |  | $ | 14,009 |
Accrued payroll and payroll related expenses |  |  | 491,678 |  |  |  | 56,947 |
Accrued professional fees |  |  | 142,056 |  |  |  | 327,950 |
Accrued clinical studies expenses |  |  | 326,410 |  |  |  | 184,737 |
Other accrued expenses |  |  | 82,768 |  |  |  | 38,026 |
Total |  | $ | 1,043,839 |  |  | $ | 621,669 |

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