Note 7 - Accrued Expenses and Other Current Liabilities

12 Months Ended

Dec. 31, 2017

Notes to Financial Statements

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

7.

 Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following:

	December 31,
	2017		2016
Accrued interest payable	$	37,415	$	29,359
Accrued Series A dividends		1,062,314		—
Accrued payroll and payroll related expenses		312,221		399,740
Accrued professional fees		122,711		72,855
Accrued clinical studies expenses		63,350		220,978
Other		30,840		151,332
Total	$	1,628,851	$	874,264