Note 6 - Investment in account receivable (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Details
Discount Amortization included in Interest Income	$ 21,401	$ 22,591	$ 57,754	$ 68,784

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