Transition Costs	6 Months Ended
Jun. 30, 2022
Transition Costs [Abstract]
Transition Costs	10. Transition costs On December 31, 2021, the Company's Board of Directors approved the termination of Stephen S. Tang, the Company’s former President and Chief Executive Officer, without cause under his existing employment agreement with the Company, with such termination effective as of March 31, 2022. On January 2, 2022, Dr. Tang and the Company entered into a transition agreement ("Transition Agreement") providing for the terms of the cessation of Dr. Tang’s employment with the Company, including the cessation of his service as President and Chief Executive Officer of the Company and as a member of the Board. Dr. Tang’s service to the Company in all capacities ended on March 31, 2022. Pursuant to the Transition Agreement, Dr. Tang received severance of $1,569, which was accrued in the consolidated financial statements at December 31, 2021 and paid in April 2022. Additionally, in accordance with his Transition Agreement, certain of his unvested time-vesting restricted stock awards and unvested PSUs that were outstanding at March 31, 2022 vested on April 8, 2022. His remaining unvested time-vesting restricted stock awards and PSUs were forfeited on March 31, 2022. These payments, rights and benefits are substantially similar to the severance benefits contemplated by his previous employment agreement in respect to a termination without cause thereunder. In aggregate, we recognized a net $128 and $1,508 of expense in relation to Dr. Tang's stock compensation during the three and six months ended June 30, 2022, respectively. On April 1, 2022 the Company's Board of Directors appointed Nancy J. Gagliano, M.D., M.B.A., to serve as the Company’s Interim Chief Executive Officer. In connection therewith, the Company and Dr. Gagliano entered into an employment agreement, dated as of March 21, 2022 (the “Employment Agreement”). Pursuant to the Employment Agreement, on April 1, 2022, Dr. Gagliano began receiving a monthly base salary of $56 per month and was also granted a one-time award of fully vested shares of the Company’s common stock with a grant date fair value of $100. Additionally, she was granted a one-time restricted stock unit award with a grant date fair value of $670 scheduled to vest in twelve equal monthly installments starting in April through her employment term, of which $168 vested during the three months ended June 30, 2022 and the remainder was forfeited when her employment ceased in June 2022. On May 20, 2022, the Company entered into an employment agreement with Carrie Eglinton Manner, and in connection therewith, the Company's Board of Directors appointed Ms. Eglinton Manner as the Company’s President and Chief Executive Officer, effective June 4, 2022 (the “Effective Date”). Pursuant to the Employment Agreement, Ms. Eglinton Manner’s initial annual base salary is $700 and she will participate in the Company’s annual incentive plan with a target annual incentive amount of at least 100% of her annual base salary. Additionally, she received inducement grants comprised of (i) a restricted stock unit award with a grant date fair value of $4,000, which vests on the second anniversary of the Effective Date (ii) a restricted stock award with a grant date fair value of $1,600, which vests annually starting on the first anniversary of the Effective Date and (iii) a PSU award with a grant date fair value of $1,600, which will be subject to the same vesting and performance conditions as are applicable to the 2022 performance-based restricted stock unit awards granted to the Company’s other executive officers.

Transition Costs

6 Months Ended

Jun. 30, 2022

10. Transition costs

On December 31, 2021, the Company's Board of Directors approved the termination of Stephen S. Tang, the Company’s former President and Chief Executive Officer, without cause under his existing employment agreement with the Company, with such termination effective as of March 31, 2022. On January 2, 2022, Dr. Tang and the Company entered into a transition agreement ("Transition Agreement") providing for the terms of the cessation of Dr. Tang’s employment with the Company, including the cessation of his service as President and Chief Executive Officer of the Company and as a member of the Board. Dr. Tang’s service to the Company in all capacities ended on March 31, 2022.

Pursuant to the Transition Agreement, Dr. Tang received severance of $1,569, which was accrued in the consolidated financial statements at December 31, 2021 and paid in April 2022. Additionally, in accordance with his Transition Agreement, certain of his unvested time-vesting restricted stock awards and unvested PSUs that were outstanding at March 31, 2022 vested on April 8, 2022. His remaining unvested time-vesting restricted stock awards and PSUs were forfeited on March 31, 2022. These payments, rights and benefits are substantially similar to the severance benefits contemplated by his previous employment agreement in respect to a termination without cause thereunder. In aggregate, we recognized a net $128 and $1,508 of expense in relation to Dr. Tang's stock compensation during the three and six months ended June 30, 2022, respectively.

On April 1, 2022 the Company's Board of Directors appointed Nancy J. Gagliano, M.D., M.B.A., to serve as the Company’s Interim Chief Executive Officer. In connection therewith, the Company and Dr. Gagliano entered into an employment agreement, dated as of March 21, 2022 (the “Employment Agreement”). Pursuant to the Employment Agreement, on April 1, 2022, Dr. Gagliano began receiving a monthly base salary of $56 per month and was also granted a one-time award of fully vested shares of the Company’s common stock with a grant date fair value of $100. Additionally, she was granted a one-time restricted stock unit award with a grant date fair value of $670 scheduled to vest in twelve equal monthly installments starting in April through her employment term, of which $168 vested during the three months ended June 30, 2022 and the remainder was forfeited when her employment ceased in June 2022.

On May 20, 2022, the Company entered into an employment agreement with Carrie Eglinton Manner, and in connection therewith, the Company's Board of Directors appointed Ms. Eglinton Manner as the Company’s President and Chief Executive Officer, effective June 4, 2022 (the “Effective Date”). Pursuant to the Employment Agreement, Ms. Eglinton Manner’s initial annual base salary is $700 and she will participate in the Company’s annual incentive plan with a target annual incentive amount of at least 100% of her annual base salary. Additionally, she received inducement grants comprised of (i) a restricted stock unit award with a grant date fair value of $4,000, which vests on the second anniversary of the Effective Date (ii) a restricted stock award with a grant date fair value of $1,600, which vests annually starting on the first anniversary of the Effective Date and (iii) a PSU award with a grant date fair value of $1,600, which will be subject to the same vesting and performance conditions as are applicable to the 2022 performance-based restricted stock unit awards granted to the Company’s other executive officers.