Note 3 - Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	March 31, 2023 (unaudited)		December 31, 2022
Payroll and related costs	$	125,483	$	195,803
Professional and consulting		-		3,685
Royalties		40,075		40,075
Accrued cost of revenues		159,414		168,657
Sales tax		22,228		22,228
Other		410		410
Total	$	347,610	$	430,858