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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | Compensation expense included in the Company’s consolidated statements of (loss) income for all share-based compensation arrangements was as follows for the periods ended December 31, 2021, 2020 and 2019, respectively:
Share-based Compensation Expense: |  | 2021 |  | 2020 |  | 2019
Research and development |  | $ | 758 |  |  | $ | 139 |  |  | $ | 429 |
Selling, general and administrative |  | 8,114 |  |  | 3,281 |  |  | 2,154 |
Restructuring costs |  | — |  |  | (421) |  |  | (2,064) |
Total share-based compensation expense |  | $ | 8,872 |  |  | $ | 2,999 |  |  | $ | 519 |
Schedule of Share Based Payment Award Stock Options and Warrant Grants Valuation Assumptions | The weighted-average assumptions under the Black-Scholes option-pricing model for stock option grants as of December 31, 2021, 2020 and 2019, are as follows:
Stock Option Assumptions: |  | 2021 |  | 2020 |  | 2019
Stock option grants: |  |  |  |  |  |
Expected term (years) |  | 6.20 |  | 6.08 |  | 6.25
Expected volatility |  | 73.91 | % |  | 75.76 | % |  | 56.48 | %
Risk-free interest rate |  | 1.10 | % |  | 0.72 | % |  | 2.52 | %
Expected dividend yield |  | — |  |  | — |  |  | — |
Schedule of Share-based Compensation, Stock Options, Activity | A summary of the combined stock option activity and other data for the Company’s stock option plans for the year ended December 31, 2021 is as follows:
Stock Option Activity and Other Data: |  | Number of Stock Options |  | Weighted Average Exercise Price per Share |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value
Stock options outstanding, January 1, 2021 |  | 5,898 |  |  | $ | 7.02 |  |  |  |  |
Granted |  | 2,857 |  |  | 8.20 |  |  |  |  |
Exercised |  | (48) |  |  | 3.54 |  |  |  |  |
Forfeited |  | (234) |  |  | 7.13 |  |  |  |  |
Expired |  | (70) |  |  | 12.62 |  |  |  |  |
Stock options outstanding, December 31, 2021 |  | 8,403 |  |  | $ | 7.39 |  |  | 7.83 years |  | $ | 12,204 |
Stock options exercisable, December 31, 2021 |  | 3,256 |  |  | $ | 7.88 |  |  | 5.88 years |  | $ | 6,291 |
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award | A summary of the Company’s restricted share awards as of December 31, 2021, and changes during the year then ended, is reflected in the table below.
Restricted Share Activity and Other Data: |  | Number of Restricted Share Awards |  | Weighted Average Grant Date Fair Value
Non-vested restricted share awards outstanding, January 1, 2021 |  | 347 |  |  | $ | 5.87 |
Granted |  | 99 |  |  | 8.22 |
Vested |  | (160) |  |  | 5.05 |
Forfeited |  | (12) |  |  | 7.08 |
Non-vested restricted share awards outstanding, December 31, 2021 |  | 274 |  |  | $ | 7.14 |
A summary of the Company’s performance share units awards as of December 31, 2021, and changes during the year then ended, is reflected in the table below.
Performance Unit Share Activity and Other Data |  | Number of Performance Share Awards |  | Weighted Average Grant Date Fair Value
Non-vested performance share awards outstanding, January 1, 2021 |  | 257 |  |  | $ | 7.09 |
Granted |  | 285 |  |  | 8.20 |
Vested |  | — |  |  | — |
Forfeited |  | (7) |  |  | 5.36 |
Non-vested performance share awards outstanding, December 31, 2021 |  | 535 |  |  | $ | 7.71 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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