Note 4 - Accrued Expenses and Other Current Liabilities

6 Months Ended

Jun. 30, 2018

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, 2018		December 31, 2017
Accrued interest payable	$	—	$	37,415
Accrued Series A dividends		—		1,062,314
Accrued payroll and payroll related expenses		328,581		312,221
Accrued professional fees		55,993		122,711
Accrued clinical studies expenses		60,120		63,350
Other accrued expenses		67,552		30,840
Total	$	512,246	$	1,628,851