Investments: Schedule of Available for sale Securities in Continuous Unrealized Loss positions (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value
Less Than 12 Months	$ 62,705	$ 115,259
12 Months or Longer	140,163	92,739
Total	202,868	207,998
Gross Unrealized Loss
Less Than 12 Months	(2,885)	(6,392)
12 Months or Longer	(15,420)	(11,798)
Total	(18,305)	(18,190)
Mortgage-backed investments, Fannie Mae
Fair Value
Less Than 12 Months	2,113	6,710
12 Months or Longer	7,918	3,226
Total	10,031	9,936
Gross Unrealized Loss
Less Than 12 Months	(30)	(1,073)
12 Months or Longer	(1,678)	(787)
Total	(1,708)	(1,860)
Mortgage-backed investments, Freddie Mac
Fair Value
Less Than 12 Months	959	4,677
12 Months or Longer	10,306	6,476
Total	11,265	11,153
Gross Unrealized Loss
Less Than 12 Months	(25)	(272)
12 Months or Longer	(1,660)	(1,559)
Total	(1,685)	(1,831)
Mortgage backed investments Ginnie Mae
Fair Value
Less Than 12 Months	3,148	7,645
12 Months or Longer	16,208	13,714
Total	19,356	21,359
Gross Unrealized Loss
Less Than 12 Months	(17)	(310)
12 Months or Longer	(1,452)	(1,291)
Total	(1,469)	(1,601)
Mortgage-backed investments, Other
Fair Value
Less Than 12 Months	25,129	27,430
12 Months or Longer	6,577	4,959
Total	31,706	32,389
Gross Unrealized Loss
Less Than 12 Months	(1,424)	(1,614)
12 Months or Longer	(418)	(292)
Total	(1,842)	(1,906)
Municipal bonds
Fair Value
Less Than 12 Months	3,016	7,892
12 Months or Longer	26,369	20,901
Total	29,385	28,793
Gross Unrealized Loss
Less Than 12 Months	(19)	(680)
12 Months or Longer	(5,031)	(5,422)
Total	(5,050)	(6,102)
U.S. Government agencies
Fair Value
Less Than 12 Months	17,381	43,664
12 Months or Longer	55,305	30,224
Total	72,686	73,888
Gross Unrealized Loss
Less Than 12 Months	(329)	(1,184)
12 Months or Longer	(1,661)	(1,186)
Total	(1,990)	(2,370)
Corporate bonds
Fair Value
Less Than 12 Months	10,959	17,241
12 Months or Longer	17,480	13,239
Total	28,439	30,480
Gross Unrealized Loss
Less Than 12 Months	(1,041)	(1,259)
12 Months or Longer	(3,520)	(1,261)
Total	$ (4,561)	(2,520)
Corporate bonds | Subordinated Debt
Fair Value
Total		$ 22,000