Investments: Schedule of Available for sale Securities, Debt Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Amortized Cost
Due within one year	$ 39,721
Due after one year through five years	10,535
Due after five years through ten years	31,157
Due after ten years	62,121
Amortized Cost	143,534
Mortgage-backed investments	86,329
Total	229,863	$ 235,927
Fair Value
Due within one year	38,823
Due after one year through five years	10,064
Due after five years through ten years	24,681
Due after ten years	56,474
Fair Value	130,042
Mortgage-backed investments	78,885
Fair Value	$ 208,927	$ 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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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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