XML 41 R33.htm IDEA: XBRL DOCUMENT v3.25.0.1

Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2024

Share-Based Payment Arrangement [Abstract]

Assumptions Used To Estimate Fair Value of Options

The assumptions used to estimate fair value and the resulting grant date fair values are as follows:

		Employee								Non-employee
		Years Ended December 31,								Years Ended December 31,
		2024				2023				2024				2023
Weighted average expected volatility			80.94	%			74.77	%			83.83	%			80.12	%
Weighted average risk-free interest rate			4.04	%			3.98	%			4.26	%			3.89	%
Weighted average expected term (in years)			6.02				6.04				5.50				5.50

Schedule of Share-based Compensation, Stock Options, Activity

The activity for the 2014 Plan, 2024 Plan and 2015 Plan for the years ended December 31, 2024 is summarized as follows:

		Number of Shares				Weighted- Average Exercise Price				Weighted- Average Remaining Contractual Life (in years)				Aggregate Intrinsic Value ($000)
Outstanding — December 31, 2023			1,867,795			$	10.72				6.10			$	184
Granted			1,070,060			$	1.84
Forfeited/expired			(32,826	)		$	35.93
Outstanding — December 31, 2024			2,905,029			$	7.16				6.62			$	—
Exercisable — December 31, 2024			1,746,457			$	10.60				5.14			$	—
Vested or expected to vest —December 31, 2024			2,905,029			$	7.16				6.62			$	—

Schedule of Restricted Stock Units ("RSU") Activity

Restricted stock unit ("RSU") activity under the 2024 Plan and 2015 Plan for the years ended December 31, 2024, is summarized as follows:

		Number of Shares				Weighted Average Grant Date Fair Value Per Share
Non-vested at December 31, 2023			1,886,374			$	2.28
Granted			2,025,940			$	1.88
Vested			(720,599	)		$	2.88
Forfeited			(71,341	)		$	1.96
Non-vested at December 31, 2024			3,120,374			$	1.89

Stock-Based Compensation Expense Related to Stock Options and Stock Awards

Stock-based compensation expense related to stock options and stock awards is included in the following line items in the accompanying statements of operations (in thousands):

		Years Ended December 31,
		2024				2023
Research and development		$	988			$	873
Selling, general and administrative			2,358				1,751
Total stock-based compensation expense		$	3,346			$	2,624

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-SubTopic 10
-Topic 718
-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
-Section 50
-Paragraph 2
-Subparagraph (e)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (f)(2)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration