Shareholders' Equity (Information About Nonvested Options) (Details)	12 Months Ended
Dec. 31, 2020 $ / shares shares
Options
Beginning balance \| shares	84,682
Vested \| shares	(55,385)
Forfeited \| shares	(2,625)
Ending balance \| shares	26,672
Weighted average grant- date fair value
Beginning balance	$ 2.40
Granted
Vested	2.15
Forfeited	2.42
Ending balance	$ 2.93

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Number of non-vested options outstanding.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Number of non-vested options forfeited.

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- Definition

Weighted average grant-date fair value of non-vested options forfeited.

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- Definition

Weighted average grant-date fair value of non-vested options outstanding.

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Number of options vested.

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- Definition

Weighted average grant-date fair value of options vested.

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