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3) Investments: Other than temporary credit impairments (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Text Block [Abstract]
Balance of credit-related OTTI at beginning	$ 370,975	$ 0
Additions for credit impairments recognized on:
Securities not previously impaired	0	0
Securities previously impaired	0	0
Reductions for credit impairments previously recognized on:
Securities that matured or were sold during the period (realized)	0	0
Securities due to an increase in expected cash flows	0	0
Balance of credit-related OTTI at ending	$ 370,975	$ 0

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- References

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Accumulated other comprehensive loss related to portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized as held-to-maturity that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. The amount represented by this item is net of tax, as applicable.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
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This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which a previous OTTI was recognized and the investor does not intend to sell the debt security and it is not more likely than not that the investor will be required to sell the debt security before recovery of its amortized cost basis.

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This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which no such other than temporary impairment (OTTI) was previously recognized.

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This item represents reductions in the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held due to increases in cash flows expected to be collected and recognized over the remaining life of the security.

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This item represents reductions in the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security because of the sale of impaired securities during the period.

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