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3) Investments: Net carrying amount of held to maturity securities (Details) - Held-to-maturity Securities - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net carrying amount for sales of securities	$ 369,263	$ 472,883
Net realized loss related to sales of securities	$ 35,388	$ 306,851

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- Definition

Represents the monetary amount of Net carrying amount for sales of securities, during the indicated time period.

+ References

No definition available.

+ Details

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- Definition

Represents the monetary amount of Net realized loss related to sales of securities, during the indicated time period.

+ References

No definition available.

+ Details

Name:	fil_NetRealizedLossRelatedToSalesOfSecurities
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Data Type:	xbrli:monetaryItemType
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: