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Share-Based Compensation
 3 Months Ended
Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Share-Based Compensation Share-Based Compensation
The Company recognized share-based compensation in its unaudited Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) during 2023 and 2022 as follows:

 Three Months Ended
March 31,
 20232022
Manufacture and supply$41 $48 
Research and development72 169 
Selling, general and administrative231 696 
Total share-based compensation expenses$344 $913 
Share-based compensation from:
Restricted stock units$25 $— 
Stock options319 913 
Total share-based compensation expenses$344 $913 

Share-Based Compensation Equity Awards

The following tables provide information about the Company’s restricted stock unit and stock option activity during the three-month period ended March 31, 2023:
Restricted Stock Unit Awards (RSUs):Number of
Units		Weighted
Average
Grant Date Fair
Value
 (in thousands) 
Unvested as of December 31, 2022162 $2.38 
Granted1,724 $0.81 
Vested(26)$2.55 
Forfeited(39)$2.55 
Unvested as of March 31, 20231,821 $0.89 
Vested and expected to vest as of March 31, 20231,632 $0.89 
Stock Option Awards:Number of
Options		Weighted Average
Exercise Price
 (in thousands)
Outstanding as of December 31, 20226,028 $5.48 
Granted— $— 
Exercised, Forfeited, Expired(253)$2.33 
Outstanding as of March 31, 20235,775 $5.62 
Vested and expected to vest as of March 31, 20235,666 $5.69 
Exercisable as of March 31, 20234,089 $6.92 

As of March 31, 2023, $1,413 of unrecognized compensation expense related to unvested restricted stock units is expected to be recognized over a weighted average period of 2.89 years from the date of grant.
As of March 31, 2023, $2,672 of unrecognized compensation expense related to non-vested stock options is expected to be recognized over a weighted average period of 1.72 years from the date of grant.

2022 Inducement Equity Incentive Plan
In accordance with Nasdaq Listing Rule 5635(c)(4), the Company adopted the 2022 Equity Inducement Plan approved by the Compensation Committee of the Board of Directors of the Company effective as of July 29, 2022. Under the 2022 Equity Inducement Plan, the Company granted an inducement equity of 100,000 shares of non-qualified Common Stock options award to an officer in September 2022.