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

3 Months Ended

Mar. 31, 2022

Notes Tables

Other Current Liabilities [Table Text Block]

	March 31, 2022		December 31, 2021
Accrued payroll and payroll related expenses	$	399,847	$	879,971
Accrued professional fees		142,668		247,704
Accrued clinical studies expenses		1,472,119		786,579
Other		127,999		65,935
Total	$	2,142,633	$	1,980,189