Note 7 - Concentrations - Customers Representing 5% or More of Total Revenue (Details) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Major Customers 1 [Member]
Revenue by customer	$ 63,096	$ 54,300
Major Customers 2 [Member]
Revenue by customer	56,089	49,324
Major Customers 3 [Member]
Revenue by customer	34,872	28,679
Major Customers 4 [Member]
Revenue by customer	34,003	26,644
Major Customers 5 [Member]
Revenue by customer	$ 33,073	$ 24,535