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Stock-Based Compensation and Stock Options - Outstanding Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award
Exercise price of employee option shares of common stock (in dollars per share)	$ 3.49	$ 19.28
Shares outstanding (in shares)	3,325,000	750,000	1,050,000
Options Outstanding Weighted-Average Remaining Contractual Life	4 years 4 months 20 days	6 years 3 days	7 years 6 months 10 days
Options Exercisable Weighted-Average Remaining Contractual Life	4 years 6 months 21 days
Exercise Price 1
Share-based Compensation Arrangement by Share-based Payment Award
Exercise price of employee option shares of common stock (in dollars per share)	$ 3.49
Shares outstanding (in shares)	3,325,000
Options Outstanding Weighted-Average Remaining Contractual Life	4 years 4 months 20 days
Weighted- average exercise price (in dollars per share)	$ 3.49
Shares outstanding and exercisable (in shares)	2,250,000
Options Exercisable Weighted-Average Remaining Contractual Life	4 years 6 months 21 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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-Publisher FASB
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Number of options outstanding, including both vested and non-vested options.

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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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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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