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Operating Expenses, Stock Compensation Series (Details) - Restricted Shares [Member] | 12 Months Ended
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Dec. 31, 2021 shares $ / shares
January 2017 [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 900,000
Vesting period | 2 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 4.61
January 2018 One [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 355,000
Vesting period | 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 3.92
January 2018 Two [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 212,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 2.30
January 2019 One [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 360,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 4.25
January 2019 Two [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 200,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 3.04
March 2019 [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 210,000
Vesting period | 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 4.60
January 2020 One [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 460,000
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 8.22
January 2020 Two [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 150,000
Vesting period | 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 8.22
January 2020 Three [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 200,000
Vesting period | 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 3.56
January 2021 One [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 579,100
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 5.52
January 2021 Two [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 175,000
Vesting period | 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 5.52
January 2021 Three [Member] |
Stock Compensation Series [Abstract] |
Number of restricted shares (in shares) | shares | 119,900
Vesting period | 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares | $ 3.22

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References No definition available. + Details
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