Note 10 - Segment Financial Information: Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Details
Profit per segment	$ 13,988	$ 14,291	$ 43,493	$ 48,510
Corporate earnings not allocated	3,785	3,704	9,650	10,077
Corporate expenses not allocated	(10,813)	(16,553)	(36,418)	(45,280)
Income taxes not allocated	(1,323)	(1,264)	(3,782)	(4,010)
Net income per segments	$ 5,637	$ 178	$ 12,943	$ 9,297

Represents the monetary amount of Corporate earnings not allocated, during the indicated time period.

No definition available.

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

Represents the monetary amount of Corporate expenses not allocated, during the indicated time period.

No definition available.

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

Represents the monetary amount of Income taxes not allocated, during the indicated time period.

No definition available.

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

Represents the monetary amount of Net income per segments, during the indicated time period.

No definition available.

Represents the monetary amount of Profit per segment, during the indicated time period.

No definition available.

No definition available.