XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.22.1

Stockholders' Equity (Tables) |  | 12 Months Ended
--- | --- | ---
Aug. 06, 2021 | Dec. 31, 2021
Stockholders' Equity Note [Abstract] |  |
Summary of Avenue Warrant Valued Using the Black-Scholes Option Pricing Method | date market price of the Company’s common stock. Interest expense incurred was $675 for the year ended December 31, 2021 . The Avenue Warrant was valued at issuance at $1,309 using the Black-Scholes option pricing method using the following assumptions:
|  | August 6, 2021 |
Contractual term (years) |  |  | 5.07 |
Expected volatility |  |  | 187.0 | %
Risk-free interest rate |  |  | 0.77 | %
Expected dividends |  |  | 0.00 | %
| The Company values stock options using the Black-Scholes option pricing model and used the following assumptions during the reporting periods:
|  | Years ended December 31,
|  | 2021 |  | 2020
Expected terms (years) |  | 5.13 - 6.27 |  | 5.77
Expected volatility |  | 177.52% - 181.33% |  | 181.00%
Risk-free interest rate |  | 0.74% - 1.31% |  | 0.27% - 0.40%
Expected dividends |  | 0.00% |  | 0.00%
Summary of Stock Option Activity |  | The following is a summary of stock option activity for the year ended December 31, 2021:
|  | Number of Options |  |  | Weighted Average Exercise Price Per Share |  |  | Weighted Average Remaining Contractual Term (in years) |  |  | Aggregate Intrinsic Value |
Outstanding at January 1, 2021 |  |  | 1,078,499 |  |  | $ | 12.68 |  |  |  |  |  |  |  |  |
Granted |  |  | 671,750 |  |  |  | 10.07 |  |  |  |  |  |  |  |  |
Exercised |  |  | (439 | ) |  |  | 9.85 |  |  |  |  |  |  |  |  |
Expired |  |  | (392 | ) |  |  | 11.67 |  |  |  |  |  |  |  |  |
Cancelled/Forfeited |  |  | (16,958 | ) |  |  | 10.59 |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2021 |  |  | 1,732,460 |  |  | $ | 11.69 |  |  |  | 9.1 |  |  | $ | — |
Exercisable at December 31, 2021 |  |  | 600,113 |  |  | $ | 12.08 |  |  |  | 9.0 |  |  | $ | — |
Summary of Stock Option Shares Outstanding and Exercisable |  | The following table summarizes information for stock option shares outstanding and exercisable at December 31, 2021:
|  |  |  |  | Options Exercisable |
Range of Exercise Prices |  | Outstanding Number of Options |  |  | Weighted Average Remaining Option Term (in years) |  |  | Number of Options |
$9.58 - $10.99 |  |  | 631,211 |  |  |  | 9.6 |  |  |  | 153,733 |
$11.00 - $14.99 |  |  | 968,750 |  |  |  | 8.8 |  |  |  | 393,481 |
$15.00 - $24.99 |  |  | 132,000 |  |  |  | 8.8 |  |  |  | 52,400 |
$25 + |  |  | 499 |  |  |  | 7.1 |  |  |  | 499 |
|  |  | 1,732,460 |  |  |  | 9.0 |  |  |  | 600,113 |
Summary of Recognized Share-based Compensation Cost |  | At December 31, 2021, there was approximately $7,406 of aggregate unrecognized compensation expense related to employee and board stock option grants. The cost is expected to be recognized over a weighted average period of 2.01 years. For the years ended December 31, 2021 and 2020, the Company recognized compensation expense $7,832 and $3,505, respectively, related to stock options granted to employees and board members, which were charged to the statement of operations as detailed below:
|  | Years ended December 31, |
|  | 2021 |  |  | 2020 |
Selling, general and administrative |  | $ | 5,334 |  |  | $ | 2,304 |
Research and development |  |  | 2,311 |  |  |  | 1,110 |
Cost of goods sold |  |  | 187 |  |  |  | 91 |
Total |  | $ | 7,832 |  |  | $ | 3,505 |
Subsequent to December 31, 2021, the Company made aggregate ten-year option grants to purchase 545,083 shares of common stock with exercise prices ranging from $6.61 to $7.25 per share. Vesting occurs over a three-year period.
Summary of Warrant Activity |  | The following is a summary of warrant activity for the year ended December 31, 2021:
|  | Warrants |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Life (Years) |
Outstanding at January 1, 2021 |  |  | 4,236,687 |  |  | $ | 9.13 |  |  |  |  |
Warrants issued |  |  | 127,755 |  |  |  | 0.01 |  |  |  |  |
Warrants exercised |  |  | (469,933 | ) |  |  | 5.88 |  |  |  |  |
Warrants expired |  |  | (11 | ) |  |  | 10.00 |  |  |  |  |
Outstanding at December 31, 2021 |  |  | 3,894,498 |  |  | $ | 9.27 |  |  |  | 3.2 |
Exercisable at December 31, 2021 |  |  | 3,894,498 |  |  | $ | 9.27 |  |  |  | 3.2 |
Schedule of Information Related to Stock Warrants Outstanding and Exercisable |  | The following table presents information related to stock warrants at December 31, 2021:
|  |  |  |  | Warrants Exercisable |
Range of Exercise Prices |  | Outstanding Number of Warrants |  |  | Weighted Average Remaining Warrants Term (in years) |  |  | Number of Warrants |
$0.01 |  |  | 283,755 |  |  |  | 3.9 |  |  |  | 283,755 |
$10.00 |  |  | 3,610,743 |  |  |  | 3.2 |  |  |  | 3,610,743 |
|  |  | 3,894,498 |  |  |  | 3.2 |  |  |  | 3,894,498 |

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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + 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 the change in stock options. + References No definition available. + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 + Details
Name: | us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock
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