Stockholders Equity (Stock Option Activities) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Weighted Average Exercise Price
Unrecognized share-based compensation	$ 0
Options [Member]
Options rollforward
Stock Options, Outstanding, Number, Beginning Balance	1,141,675	1,241,675
Options forfeited		(100,000)
Options, Outstanding, Number, Ending Balance	1,141,675	1,141,675	1,241,675
Options vested and exercisable	713,547
Weighted Average Exercise Price
Weighted Average Exercise Price, Beginning	$ 5.73	$ 5.73
Weighted Average Exercise Price, options granted		5.73
Weighted Average Exercise Price, Ending	5.73	$ 5.73	$ 5.73
Weighted Average Exercise Price, options vested and exercisable	$ 5.73
Weighted Average Remaining Contractual Life, Options outstanding (in years)	5 years 3 months 21 days	6 years 3 months 21 days	7 years 3 months 21 days
Weighted Average Remaining Contractual Life, Options vested and exercisable (in years)	5 years 3 months 21 days

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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

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

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

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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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