XML 46 R32.htm IDEA: XBRL DOCUMENT
v3.25.2

Stockholders' Equity (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2025
Stockholders' Equity Note [Abstract] |
Schedule of Designated Preferred Units | As of June 30, 2025, the Company has designated the following preferred stock:
Designated Preferred Shares |  | June 30, 2025
Series A |  | 4,200 |
Series B |  | 2,360 |
Series C |  | 590 |
Series D |  | 10,000 |
Series E |  | 40,000 |
Series E-1 |  | 12,960 |
Series F-1 |  | 24,900 |
Series F-2 |  | 24,900 |
Series F-3 |  | 34,860 |
Series F-4 |  | 24,900 |
Total |  | 179,670 |
Schedule of Avenue Warrant Valued Using the Black-Scholes Option Pricing Method | The Company values stock options using the Black-Scholes option pricing model and used the following assumptions, on a weighted-average basis, during the reporting periods:
| Six Months Ended June 30,
| 2025 |  | 2024
Expected terms (years) | 5.7 |  | 5.5
Expected volatility | 89.2% |  | 114.3%
Risk-free interest rate | 4.32% |  | 4.22%
Expected dividends | 0.00% |  | 0.00%
Schedule of Stock Option Activity | The following is a summary of stock option activity for the six months ended June 30, 2025:
| Number of Options |  | Weighted Average Exercise Price Per Share |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding at January 1, 2025 | 5,766,927 |  | $ | 7.23 |  |  | 7.5 |  | $ | 28,796 |
Granted | 2,632,163 |  | 15.76 |  |  | 9.6 |  |
Exercised | (243,684) |  |  | 6.14 |  |  |  |  |
Expired | (786) |  |  | 16.25 |  |  |  |  |
Cancelled/Forfeited | (72,377) |  | 9.88 |  |  |  |  |
Outstanding at June 30, 2025 | 8,082,243 |  | $ | 10.01 |  |  | 7.9 |  | $ | 35,672 |
Exercisable at June 30, 2025 | 4,242,694 |  | $ | 8.57 |  |  | 6.7 |  | $ | 22,968 |
Unvested at June 30, 2025 | 3,839,549 |  |  | $ | 11.61 |  |  | 9.2 |  | $ | 12,704 |
Schedule of Recognized Share-based Compensation Cost | The following is a summary of share-based compensation expense in the statement of operations:
| Three Months Ended June 30, |  | Six Months Ended June 30,
(In thousands) | 2025 |  | 2024 |  | 2025 |  | 2024
Selling, general and administrative | $ | 4,718 |  |  | $ | 1,930 |  |  | $ | 9,247 |  |  | $ | 3,971 |
Research and development | 1,773 |  |  | 895 |  |  | 3,341 |  |  | 1,543 |
Cost of goods sold | 718 |  |  | 244 |  |  | 1,484 |  |  | 500 |
Total | $ | 7,209 |  |  | $ | 3,069 |  |  | $ | 14,072 |  |  | $ | 6,014 |
Schedule of Warrant Activity | The following is a summary of common stock warrant activity for the six months ended June 30, 2025:
| Warrants |  | Weighted Average Exercise Price
Outstanding at January 1, 2025 | 3,193,275 |  | $ | 5.80 |
Warrants issued | — |  |  | — |
Warrants exercised | (1,615,775) |  |  | 10.00 |
Warrants canceled | (236,125) |  |  | 10.00 |
Outstanding and exercisable at June 30, 2025 | 1,341,375 |  | $ | 0.01 |
Schedule of Information Related to Stock Warrants Outstanding and Exercisable | The following table presents information related to common stock warrants outstanding at June 30, 2025:
| Warrants Exercisable
Range of Exercise Prices | Outstanding Number of Warrants |  | Weighted Average Remaining Warrant Term (in years)
$0.01 (1) | 1,341,375 |  | n/a
(1) Pre-funded warrants with a $0.01 exercise price do not expire until exercised.

X
- Definition Schedule of Information Related to Stock Warrants Outstanding and Exercisable. + References No definition available. + Details
Name: | dcth_ScheduleOfInformationRelatedToStockWarrantsOutstandingAndExercisableTableTextBlock
Namespace Prefix: | dcth_
Data Type: | dtr-types:textBlockItemType
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 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

X
- Definition Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-4 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-5 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481142/505-10-45-2 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-10 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-8 Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-6 Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-7 + Details
Name: | us-gaap_ScheduleOfStockByClassTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in stock options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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_ScheduleOfStockOptionsRollForwardTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 + Details
Name: | us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration