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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2020
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 income (loss) for all share-based compensation arrangements was as follows for the periods ended December 31, 2020, 2019 and 2018, respectively:
Share-based Compensation Expense: |  | 2020 |  | 2019 |  | 2018
Research and development |  | $ | 139 |  |  | $ | 429 |  |  | $ | 880 |
Selling, general and administrative |  | 3,281 |  |  | 2,154 |  |  | 6,972 |
Restructuring costs |  | (421) |  |  | (2,064) |  |  | — |
Total share-based compensation expense |  | $ | 2,999 |  |  | $ | 519 |  |  | $ | 7,852 |
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, 2020, 2019 and 2018, are as follows:
Stock Option Assumptions: |  | 2020 |  | 2019 |  | 2018
Stock option grants: |  |  |  |  |  |
Expected term (years) |  | 6.08 |  | 6.25 |  | 6.25
Expected volatility |  | 75.76 | % |  | 56.48 | % |  | 56.59 | %
Risk-free interest rate |  | 0.72 | % |  | 2.52 | % |  | 2.68 | %
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, 2020 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, 2020 |  | 5,121 |  |  | $ | 7.51 |  |  |  |  |
Granted |  | 2,551 |  |  | 6.90 |  |  |  |  |
Exercised |  | (403) |  |  | 5.08 |  |  |  |  |
Forfeited |  | (566) |  |  | 3.24 |  |  |  |  |
Expired |  | (805) |  |  | 13.37 |  |  |  |  |
Stock options outstanding, December 31, 2020 |  | 5,898 |  |  | $ | 7.02 |  |  | 7.96 years |  | $ | 7,115 |
Stock options exercisable, December 31, 2020 |  | 2,172 |  |  | $ | 9.48 |  |  | 5.58 years |  | $ | 1,841 |
Schedule of Stockholders' Equity Note, Warrants or Rights | A summary of the combined warrant activity and other data for the year ended December 31, 2020 is as follows:
Warrant Activity and Other Data: |  | Number of Warrants |  | Weighted Average Exercise Price per Share |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value
Warrants outstanding, January 1, 2020 |  | 291 |  |  | $ | 13.59 |  |  |  |  |
Granted |  | — |  |  | — |  |  |  |  |
Exercised |  | — |  |  | — |  |  |  |  |
Forfeited |  | — |  |  | — |  |  |  |  |
Expired |  | (291) |  |  | 13.59 |  |  |  |  |
Warrants outstanding, December 31, 2020 |  | — |  |  | $ | — |  |  | 0.00 years |  | $ | — |
Warrants exercisable, December 31, 2020 |  | — |  |  | $ | — |  |  | 0.00 years |  | $ | — |
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award | A summary of the Company’s restricted share awards as of December 31, 2020, 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, 2020 |  | 347 |  |  | $ | 4.73 |
Granted |  | 186 |  |  | 7.69 |
Vested |  | (115) |  |  | 6.01 |
Forfeited |  | (71) |  |  | 4.83 |
Non-vested restricted share awards outstanding, December 31, 2020 |  | 347 |  |  | $ | 5.87 |
A summary of the Company’s performance share units awards as of December 31, 2020, 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, 2020 |  | — |  |  | $ | — |
Granted |  | 257 |  |  | 7.09 |
Vested |  | — |  |  | — |
Forfeited |  | — |  |  | — |
Non-vested performance share awards outstanding, December 31, 2020 |  | 257 |  |  | $ | 7.09 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options and Warrants grants. + References No definition available. + Details
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- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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=115993241&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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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 + Details
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