Note 10 - Segment Financial Information: Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Division I
Segment Reporting Information, Revenue for Reportable Segment	$ 8,781	$ 7,147
Profit (Loss)	3,100	2,460
Segment Reporting Information, Net Assets	86,979
Segment Reporting Information, Net Assets	86,315
Division II
Segment Reporting Information, Revenue for Reportable Segment	8,961	7,993
Profit (Loss)	3,870	3,111
Segment Reporting Information, Net Assets	94,765
Segment Reporting Information, Net Assets	96,884
Division III
Segment Reporting Information, Revenue for Reportable Segment	8,661	7,842
Profit (Loss)	3,781	3,399
Segment Reporting Information, Net Assets	87,941
Segment Reporting Information, Net Assets	89,411
Division IV
Segment Reporting Information, Revenue for Reportable Segment	9,045	8,588
Profit (Loss)	3,043	3,272
Segment Reporting Information, Net Assets	106,952
Segment Reporting Information, Net Assets	107,401
Division V
Segment Reporting Information, Revenue for Reportable Segment	5,568	5,126
Profit (Loss)	1,532	1,755
Segment Reporting Information, Net Assets	54,959
Segment Reporting Information, Net Assets	56,240
Division VII
Segment Reporting Information, Revenue for Reportable Segment	5,180	3,507
Profit (Loss)	1,255	471
Segment Reporting Information, Net Assets	57,352
Segment Reporting Information, Net Assets	55,032
Division VIII
Segment Reporting Information, Revenue for Reportable Segment	4,684	4,017
Profit (Loss)	1,198	966
Segment Reporting Information, Net Assets	45,417
Segment Reporting Information, Net Assets	45,518
Division IX
Segment Reporting Information, Revenue for Reportable Segment	8,205	7,315
Profit (Loss)	3,165	2,780
Segment Reporting Information, Net Assets	83,716
Segment Reporting Information, Net Assets	84,381
Segment Reporting Information, Revenue for Reportable Segment	59,085	51,535
Profit (Loss)	20,944	18,214
Segment Reporting Information, Net Assets	618,081
Segment Reporting Information, Net Assets	621,182
Reconciliation of Revenues
Total revenues from reportable divisions	59,085	51,535
Corporate finance charges earned not allocated to divisions	34	25
Corporate investment income earned not allocated to divisions	1,788	1,717
Timing difference of insurance income allocation to divisions	1,838	1,396
Other revenue not allocated to divisions	3	8
Consolidated Revenues	62,748	54,681
Profit per division	20,944	18,214
Corporate earnings not allocated	3,663	3,146
Corporate expenses not allocated	(19,280)	(16,851)
Income Taxes not allocated	(823)	(794)
Net Income	$ 4,504	$ 3,715