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Share-based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Non-cash, Share-based Compensation Expense

For the three and nine month periods ended September 30, 2020 and 2019, the Company recognized the following non-cash, share-based compensation expense in the statements of operations (in thousands):

	Three Months Ended September 30,								Nine Months Ended September 30,
	2020				2019				2020				2019
Research and development	$	5			$	14			$	18			$	59
General and administrative		—				15				7				65
Total	$	5			$	29			$	25			$	124

Summary of Stock Option Activities

Stock option transactions for the nine month period ended September 30, 2020 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, 2019		31,136			$	84.50				6.26
Granted		6,250				5.96
Exercised	—				—
Forfeited and cancelled		(248	)			610.46
Options outstanding at September 30, 2020		37,138			$	67.77				6.29
Options exercisable at September 30, 2020		31,013			$	80.37				5.58
Options vested and expected to vest		37,138			$	67.77				6.29

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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.

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-Publisher FASB
-Name Accounting Standards Codification
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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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