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3) Investments: Net carrying amount of held to maturity securities (Details) - Held-to-maturity Securities - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Net carrying amount for sales of securities	$ 662,972	$ 2,432,180
Net realized loss related to sales of securities	$ 53,097	$ 314,643

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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

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- Details

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