Investments: Schedule of Available for sale Securities, Debt Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Amortized Cost
Due within one year	$ 24,929
Due after one year through five years	25,248
Due after five years through ten years	30,923
Due after ten years	63,899
Amortized Cost	144,999
Mortgage-backed investments	88,162
Total	233,161	$ 235,927
Fair Value
Due within one year	24,357
Due after one year through five years	24,737
Due after five years through ten years	25,910
Due after ten years	58,455
Fair Value	133,459
Mortgage-backed investments	81,489
Fair Value	$ 214,948	$ 217,778

Debt Securities, Excluding Accrued Interest, Amortized Cost Total

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Debt Securities, Excluding Accrued Interest, Fair Value, Excluding Mortgage Backed Securities

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