Note 11 - Geographic Information: Schedule Of Geographic Information (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Details
Company Sales in the United States	$ 21,192	$ 20,286	$ 19,488
Company Sales in Europe	9,160	8,519	7,989
Company Sales Other	$ 11,646	$ 12,609	$ 11,821

Represents the monetary amount of Company Sales in the United States, during the indicated time period.

No definition available.

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