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Basis of Presentation and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Useful Life of Property and Equipment

The estimated useful lives of the major classes of property and equipment are as follows:

			Estimated Useful Lives
Furniture and office equipment			3 to 5 years
Leasehold improvements			5 to 6 years
Laboratory equipment			5 years

Property and equipment consisted of the following:

			As of December 31,
(in thousands)			2021						2020
Furniture and office equipment			$	955					$	798
Leasehold improvements			1,962						1,962
Laboratory equipment			906						868
			3,823						3,628
Less—accumulated depreciation			(3,441)						(3,004)
Property and equipment, net			$	382					$	624

Schedule of Antidilutive Securities Excluded from the Calculation of Basic and Diluted Loss Per Share

Shares used in calculating diluted net loss per common share exclude as anti-dilutive the following share equivalents:

			December 31,
			2021						2020
Options to purchase Common Stock			3,771,984						1,860,507
Warrants to purchase Common Stock			4,490,159						5,260,992
Restricted Stock Units			—						491
Series A Convertible Preferred Stock			877						877
Series E Convertible Preferred Stock			2,684,607						2,684,607
			10,947,627						9,807,474

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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