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Stockholders' Equity (Details) - 2012 Plan [Member] - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Number of options
Options outstanding at beginning of year	4,896	4,896
Granted
Forfeited	(544)
Options outstanding and exercisable at end of year	4,352	4,896
Weighted average exercise price
Options outstanding at beginning of year	$ 190.7	$ 190.7
Granted
Forfeited	216
Options outstanding and exercisable at end of year	$ 81.81	$ 190.7
Weighted average remaining contractual life
Options outstanding at beginning of year	3 years 10 months 10 days	3 years 10 months 10 days
Options outstanding and exercisable at end of year	3 years 3 months 26 days	2 years 10 months 10 days

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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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Gross 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.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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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