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Share-based Compensation (Tables)

6 Months Ended

Jun. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Non-cash, Share-based Compensation Expense

For the three and six month periods ended June 30, 2021 and 2020, the Company recognized the following non-cash, share-based compensation expense in the statements of operations (in thousands):

	Three Months Ended June 30,								Six Months Ended June 30,
	2021				2020				2021				2020
Research and development	$	38			$	4			$	74			$	13
General and administrative		95				—				200				7
Total	$	133			$	4			$	274			$	20

Summary of Stock Option Activities

Stock option transactions for the six month period ended June 30, 2021 under the Company’s stock incentive plans were as follows:

	Number of Options				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term (in years)
Options outstanding at December 31, 2020		531,238			$	8.71				9.68
Granted		147,200				3.63
Exercised	—				—
Forfeited and cancelled		(53,537	)			10.84
Options outstanding at June 30, 2021		624,901			$	7.33				9.23
Options exercisable at June 30, 2021		100,180			$	24.37				7.58
Options vested and expected to vest		624,293			$	7.33				9.23

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- References

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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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.

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