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Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2023

Share-Based Payment Arrangement [Abstract]

Summary of Stock Award Activity for the Period

The following table summarizes the activity related to the stock option awards for the nine months ended September 30, 2023:

			Number of Shares						Weighted Average Exercise Price
Awards outstanding at December 31, 2022			8,418,571						$	2.17
Granted			1,176,868						0.87
Forfeited			(50,000)						1.29
Awards outstanding at September 30, 2023			9,545,439						$	2.01
Options exercisable at September 30, 2023			5,018,072						$	3.04
Weighted average remaining contractual term			6.6 Years
Options vested and expected to vest at September 30, 2023			8,188,444						$	2.21
Weighted average remaining contractual term			7.5 Years

Summary of Compensation Expense Related to Grants of Stock Options

Compensation expense related to the grants of stock options is included in research and development and general and administrative expense as follows (in thousands):

			Three Months Ended September 30,															Nine Months Ended September 30,
			2023						2022									2023						2022
Research and development			$	113					$	109								$	316					$	289
General and administrative			320						229									859						692
Total share-based compensation expense			$	433					$	338								$	1,175					$	981

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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
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-Publisher FASB
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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
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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-Name Accounting Standards Codification
-Section 50
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-Subparagraph (d)
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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