XML 53 R36.htm IDEA: XBRL DOCUMENT
v3.25.1

Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Stock-Based Compensation |
Schedule of Stock Based Compensation Expense | Stock based compensation has been reported within expense line items on the consolidated statement of operations for the years ended 2024 and 2023 as shown in the following table (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended |
​ |  | December 31, |
​ |  | 2024 |  | 2023 | ​
General and administrative | ​ | $ | 498 | ​ | $ | 1,039 | ​
Research and development | ​ | ​ | 94 | ​ | ​ | 434 | ​
Stock-based compensation costs | ​ | $ | 592 | ​ | $ | 1,473 | ​
Schedule of Share Option Activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | Weighted |  | ​ | ​
​ |  | ​ |  | Weighted |  | Average |  | ​ | ​
​ |  | Number of |  | Average |  | Remaining |  | Aggregate
​ | ​ | Options |  | Exercise |  | Contractual | ​ | Intrinsic
​ | ​ | Outstanding | ​ | Price Per Share |  | Term (Years) | ​ | Value ($000)
Options outstanding at December 31, 2022 | ​ | 107,373 | ​ | $ | 87.70 |  | 8.34 | ​ | $ | —
Granted | ​ | 43,342 | ​ | $ | 8.82 |  | — | ​ | $ | —
Exercised | ​ | — | ​ | $ | — |  | — | ​ | $ | —
Cancelled/forfeited | ​ | (7,919) | ​ | $ | 332.24 |  | — | ​ | $ | —
Options outstanding at December 31, 2023 |  | 142,796 | ​ | $ | 50.20 |  | 7.96 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Granted | ​ | 12,500 | ​ | $ | 2.28 |  | — | ​ | $ | —
Cancelled/forfeited | ​ | (36,807) | ​ | $ | 51.37 |  | — | ​ | $ | —
Options outstanding at December 31, 2024 |  | 118,489 | ​ | $ | 44.41 |  | 7.20 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unvested at December 31, 2024 |  | 17,773 | ​ | $ | 9.38 |  | 8.45 | ​ | $ | —
Vested and exercisable at December 31, 2024 |  | 100,716 | ​ | $ | 50.59 |  | 6.99 | ​ | $ | —
Schedule of Assumptions Used for Fair Value of the Stock Options Granted Using Black-Scholes Option-Pricing Model | ​
​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
​ | ​ | Year ended | ​ | Year ended
​ |  | December 31, 2024 |  | December 31, 2023
Expected term (years) |  | 6 |  | 5 - 6
Risk free interest rate |  | 3.995% | ​ | 3.660%  – 4.160%
Volatility |  | 93% | ​ | 89% – 92%
Expected dividend yield over expected term |  | 0.00% | ​ | 0.00%
Resulting weighted average grant date fair value |  | $1.77 | ​ | $6.63
Schedule of Restricted Stock Units Activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ | Weighted
​ |  | ​ |  | ​ | ​ | Average
​ | ​ | Restricted |  | ​ | ​ | Remaining
​ | ​ | Stock Units | ​ | ​ | ​ | Term
Restricted Stock Units outstanding at December 31, 2022 | ​ | 9,177 | ​ | $28.20 | ​ | ​
Granted | ​ | 25,621 | ​ | $11.96 | ​ | ​
Cancelled/forfeited | ​ | (300) | ​ | $13.50 | ​ | ​
Restricted Stock Units outstanding at December 31, 2023 |  | 34,498 | ​ | $16.26 | ​ | 8.96 years
​ | ​ | ​ | ​ | ​ | ​ | ​
Granted | ​ | 12,500 | ​ | $2.28 | ​ | 9.03 years
Cancelled/forfeited | ​ | (7,584) | ​ | $15.31 | ​ | ​
Restricted Stock Units outstanding at December 31, 2024 | ​ | 39,414 | ​ | $12.01 | ​ | 8.30 years
​ | ​ | ​ | ​ | ​ | ​ | ​
Unvested at December 31, 2024 |  | 9,945 | ​ | $13.67 | ​ | 8.06 years
​ | ​ | ​ | ​ | ​ | ​ | ​
Vested at December 31, 2024 |  | 29,469 | ​ | $11.45 | ​ | 8.39 years
​

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 -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -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 -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -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