Note 4 - Investment in account receivable (Details) - USD ($)	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Details
Discount Amortization included in Interest Income	$ 15,228	$ 18,345

Represents the monetary amount of Discount Amortization included in Interest Income, during the indicated time period.

No definition available.

Name:	fil_DiscountAmortizationIncludedInInterestIncome
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration