Share-Based Payment Arrangements (Summary of the Status of Stock Options) (Details) - $ / shares	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Share-Based Payment Arrangements [Abstract]
Stock Options, Outstanding at January 1, 2020	14,157
Stock options, Granted	0	0
Stock Options, Exercised	0
Stock Options, Forfeited or Expired	0
Stock Options, Outstanding at December 31, 2020	14,157	14,157
Stock Options, Exercisable at December 31, 2020	14,157
Weighted Average Exercise Price, Outstanding at January 1, 2020	$ 6.99
Weighted Average Exercise Price, Granted	0
Weighted Average Exercise Price, Exercised	0
Weighted Average Exercise Price, Forfeited or Expired	0
Weighted Average Exercise Price, Outstanding at December 31, 2020	6.99	$ 6.99
Weighted Average Exercise Price, Exercisable at December 31, 2020	$ 6.99
Average Remaining Contractual Term, Outstanding at December 31, 2020	1 year
Average Remaining Contractual Term, Exercisable at December 31, 2020	1 year

No definition available.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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- Definition

Weighted average price of options that were either forfeited or expired.

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Net number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

+ 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
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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No definition available.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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