Stockholders' Equity and Stock Based Compensation - Plans and options (Details) - $ / shares |
Sep. 30, 2021 |
Jun. 30, 2021 |
Dec. 31, 2020 |
Jun. 30, 2018 |
May 31, 2018 |
|---|---|---|---|---|---|
| Stock-based compensation | |||||
| Common Stock, par value (in dollars per share) | $ 0.01 | $ 0.01 | |||
| 2021 Plan | |||||
| Stock-based compensation | |||||
| Common Stock, par value (in dollars per share) | $ 0.01 | ||||
| Number of shares of common stock initially available for award | 500,000 | ||||
| Options reserved for future issuance (in shares) | 446,068 | ||||
| 2012 Plan | |||||
| Stock-based compensation | |||||
| Number of shares of common stock initially available for award | 1,000,000 | 600,000 | |||
| Options reserved for future issuance (in shares) | 0 | 352,158 |
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- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Number of shares authorized for issuance under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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