Stock-Based Compensation	3 Months Ended
Mar. 31, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	5. Stock-Based Compensation On April 15, 2021, the Company’s Board of Directors adopted the 2021 Incentive Award Plan (the “2021 Plan”) to replace the 2011 Stock Incentive Plan (the “2011 Plan”). The 2021 Plan was approved by the Company’s stockholders at the Company’s Annual Meeting of Stockholders held on June 10, 2021. The 2021 Plan is administered by the Company’s Board of Directors and permits the Company to grant incentive and non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units and other stock-based awards. There were no options granted during the three months ended March 31, 2022 and 2021. At March 31, 2022, there were 253,000 shares remaining available for grant under the 2021 Plan. The Company recognized stock-based compensation expense of less than $0.1 million and approximately $0.2 million in general and administrative expense during the three months ended March 31, 2022 and 2021, respectively.

Stock-Based Compensation

3 Months Ended

Mar. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

5. Stock-Based Compensation

On April 15, 2021, the Company’s Board of Directors adopted the 2021 Incentive Award Plan (the “2021 Plan”) to replace the 2011 Stock Incentive Plan (the “2011 Plan”). The 2021 Plan was approved by the Company’s stockholders at the Company’s Annual Meeting of Stockholders held on June 10, 2021. The 2021 Plan is administered by the Company’s Board of Directors and permits the Company to grant incentive and non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units and other stock-based awards.

There were no options granted during the three months ended March 31, 2022 and 2021. At March 31, 2022, there were 253,000 shares remaining available for grant under the 2021 Plan.

The Company recognized stock-based compensation expense of less than $0.1 million and approximately $0.2 million in general and administrative expense during the three months ended March 31, 2022 and 2021, respectively.