Note 6 - Lessee Leases (Details) - USD ($)	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Details
Rental expense under operating agreements	$ 40,981	$ 45,896

Represents the monetary amount of Rental expense under operating agreements, during the indicated time period.

No definition available.

Name:	fil_RentalExpenseUnderOperatingAgreements
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration