13) Stock Compensation Plans: Schedule of Assumptions Used (Details)	12 Months Ended
Dec. 31, 2020 $ / shares
All Plans - March 27 2020
Weighted Average Fair Value of Each Option	$ 0.65
Expected Dividend Yield	5.00%
Underlying stock FMV	$ 3.76
Weighted Average Volatility	32.29%
Weighted Average Risk Free Interest Rate	1.64%
Weighted Average Expected Life (Term)	4 years 9 months 25 days
All Plans - December 6, 2019
Weighted Average Fair Value of Each Option	$ 0.96
Expected Dividend Yield	5.00%
Underlying stock FMV	$ 5.19
Weighted Average Volatility	32.79%
Weighted Average Risk Free Interest Rate	1.64%
Weighted Average Expected Life (Term)	4 years 9 months 29 days
All Plans - January 17, 2019
Weighted Average Fair Value of Each Option	$ 1.12
Expected Dividend Yield	5.00%
Underlying stock FMV	$ 4.98
Weighted Average Volatility	36.04%
Weighted Average Risk Free Interest Rate	2.56%
Weighted Average Expected Life (Term)	5 years 3 months 22 days

Represents the per-share monetary value of Underlying stock FMV, during the indicated time period.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Rate of weighted-average expected volatility for award under share-based payment arrangement.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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