Note 2 - Accrued Expenses (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	June 30, 2022 (unaudited)		December 31, 2021
Payroll and related costs	$	36,357	$	58,182
Professional and consulting		-		26,070
Royalties		47,803		47,803
Accrued cost of revenues		304,740		212,020
Sales tax		31,902		31,902
Other		410		410
Total	$	421,212	$	376,387