Note 4 - Accrued Expenses and Other Current Liabilities

6 Months Ended

Jun. 30, 2019

Notes to Financial Statements

Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]

4. Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:

	June 30, 2019		December 31, 2018
Accrued payroll and payroll related expenses		277,439		409,889
Accrued professional fees		31,000		69,231
Accrued clinical studies expenses		84,211		34,000
Other accrued expenses		50,787		92,106
Total	$	443,437	$	605,226