Note 10 - Segment Financial Information: Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Division I
Segment Reporting Information, Revenue for Reportable Segment	$ 10,210	$ 8,781
Profit (Loss)	3,253	3,100
Segment Reporting Information, Net Assets	103,173
Segment Reporting Information, Net Assets	105,094
Division II
Segment Reporting Information, Revenue for Reportable Segment	9,181	8,509
Profit (Loss)	3,754	3,561
Segment Reporting Information, Net Assets	103,923
Segment Reporting Information, Net Assets	102,952
Division III
Segment Reporting Information, Revenue for Reportable Segment	10,163	9,312
Profit (Loss)	4,183	4,161
Segment Reporting Information, Net Assets	107,802
Segment Reporting Information, Net Assets	109,390
Division IV
Segment Reporting Information, Revenue for Reportable Segment	9,791	9,045
Profit (Loss)	3,193	3,043
Segment Reporting Information, Net Assets	124,039
Segment Reporting Information, Net Assets	123,652
Division V
Segment Reporting Information, Revenue for Reportable Segment	6,560	5,568
Profit (Loss)	1,997	1,532
Segment Reporting Information, Net Assets	68,583
Segment Reporting Information, Net Assets	68,269
Division VII
Segment Reporting Information, Revenue for Reportable Segment	6,304	5,180
Profit (Loss)	1,296	1,255
Segment Reporting Information, Net Assets	74,658
Segment Reporting Information, Net Assets	73,116
Division VIII
Segment Reporting Information, Revenue for Reportable Segment	5,717	4,684
Profit (Loss)	1,403	1,198
Segment Reporting Information, Net Assets	58,722
Segment Reporting Information, Net Assets	59,100
Division IX
Segment Reporting Information, Revenue for Reportable Segment	8,506	8,006
Profit (Loss)	2,983	3,094
Segment Reporting Information, Net Assets	97,459
Segment Reporting Information, Net Assets	98,875
Segment Reporting Information, Revenue for Reportable Segment	66,432	59,085
Profit (Loss)	22,062	20,944
Segment Reporting Information, Net Assets	738,359
Segment Reporting Information, Net Assets	740,448
Reconciliation of Revenues
Total revenues from reportable divisions	66,432	59,085
Corporate finance charges earned not allocated to divisions	31	34
Corporate investment income earned not allocated to divisions	1,780	1,788
Timing difference of insurance income allocation to divisions	2,299	1,838
Other revenue not allocated to divisions	2	3
Consolidated Revenues	70,544	62,748
Profit per division	22,062	20,944
Corporate earnings not allocated	4,112	3,663
Corporate expenses not allocated	(23,339)	(19,280)
Consolidated Net Income	$ 2,835	$ 5,327