Note 6 - Accrued Expenses and Other Current Liabilities (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Other Current Liabilities [Table Text Block]

	June 30, 2022		December 31, 2021
Accrued payroll and payroll related expenses	$	661,061	$	879,971
Accrued professional fees		163,269		247,704
Accrued clinical studies expenses		766,916		786,579
Other accrued expenses		77,744		65,935
Total	$	1,668,990	$	1,980,189