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Note 7 - Concentrations - Customers Representing 5% or More of Total Revenue (Details) - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Major Customers 1 [Member]
Revenue by customer	$ 61,350	$ 74,326
Major Customers 2 [Member]
Revenue by customer	54,300	47,452
Major Customers 3 [Member]
Revenue by customer	50,095	40,289
Major Customers 4 [Member]
Revenue by customer	42,294	38,333
Major Customers 5 [Member]
Revenue by customer	$ 40,821	$ 32,108

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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