Note 5 - Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Other Current Liabilities [Table Text Block]

	December 31,
	2019		2018
Accrued payroll and payroll related expenses	$	182,708	$	409,889
Accrued professional fees		48,338		69,231
Accrued clinical studies expenses		57,378		34,000
Other		70,108		92,106
Total	$	358,532	$	605,226