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Fair Value (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

The table below presents the balances of assets and liabilities measured at fair value on a recurring basis by level within the hierarchy as (in thousands):

 Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

		As of December 31, 2023
		Total				Level 1				Level 2				Level 3
Assets:
Cash equivalents		$	4,805			$	4,805			$	—			$	—
Marketable investments		$	7,631			$	7,631			$	—			$	—

		As of December 31, 2022
		Total				Level 1				Level 2				Level 3
Assets:
Cash equivalents		$	25,180			$	25,180			$	—			$	—
Marketable investments		$	7,137			$	7,137			$	—			$	—

Schedule of Assumptions to Estimate Fair Value of Warrants

The Company utilized the following assumptions to estimate the fair value of the March 2019 Warrants:

 Schedule of Assumptions to Estimate Fair Value of Warrants 

		December 31,				December 31,
		2023				2022
Underlying price per share		$	0.44			$	0.31
Exercise price per share		$	8.80			$	8.80
Risk-free interest rate			5.47	%			4.67	%
Expected holding period			.19				1.19
Expected volatility			80	%			70	%
Expected dividend yield			—				—
Warrants measurement input			—				—

Schedule of Range of Probabilities

 Schedule of Range of Probabilities

Range of Probability		Probability
Low			0.5	%
Medium			1.0	%
High			5.0	%

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Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-SubTopic 10
-Topic 820
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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