XML 64 R53.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Stockholders' Equity - Summary of Warrant Activity (Details) - $ / shares | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017
Warrants outstanding [Roll Forward] |  |
Outstanding, beginning of period (in shares) | 14,049 |
Exercised (in shares) | (74,010) |
Outstanding, end of period (in shares) | 70,185,797 | 14,049
Warrants, Exercise Price per Share [Roll Forward] |  |
Outstanding, (in dollars per share) | $ 2.85 | $ 13,942.79
Warrants, Weighted Average Exercise Price [Roll Forward] |  |
Outstanding, beginning of period (in dollars per share) | 13,942.79 |
Exercised (in dollars per share) | 0.50 |
Outstanding, end of period (in dollars per share) | $ 2.85 | $ 13,942.79
Weighted average remaining life | 6 years | 4 years 10 months 17 days
Minimum [Member] |  |
Warrants, Exercise Price per Share [Roll Forward] |  |
Outstanding, (in dollars per share) | $ 0.01 | $ 1,225
Maximum [Member] |  |
Warrants, Exercise Price per Share [Roll Forward] |  |
Outstanding, (in dollars per share) | $ 19,712,000 | $ 19,712,000
February 2018 Warrants [Member] |  |
Warrants outstanding [Roll Forward] |  |
Outstanding, beginning of period (in shares) |  |
Warrants issued (in shares) | 1,076,002 |
Outstanding, end of period (in shares) | 1,000,000 |
Warrants, Exercise Price per Share [Roll Forward] |  |
Outstanding, (in dollars per share) | $ 10.00 |
Warrants, Weighted Average Exercise Price [Roll Forward] |  |
Warrants issued (in dollars per share) | $ 9.33 |
Convertible Notes [Member] |  |
Warrants outstanding [Roll Forward] |  |
Warrants issued (in shares) | 69,169,756 |
Warrants, Weighted Average Exercise Price [Roll Forward] |  |
Warrants issued (in dollars per share) | $ 0.18 |

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | dcth_ClassOfWarrantOrRightExercisePricePerShareRollForward
Namespace Prefix: | dcth_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of each class of warrants or rights exercised during the period. + References No definition available. + Details
Name: | dcth_ClassOfWarrantOrRightExercisesInPeriod
Namespace Prefix: | dcth_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of each class of warrants or rights issued during the period. + References No definition available. + Details
Name: | dcth_ClassOfWarrantOrRightIssued
Namespace Prefix: | dcth_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average exercise price for warrants or rights outstanding. + References No definition available. + Details
Name: | dcth_ClassOfWarrantOrRightWeightedAverageExercisePrice
Namespace Prefix: | dcth_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average exercise price for warrants or rights to acquire and convert their warrants into shares that were exercised during the period. + References No definition available. + Details
Name: | dcth_ClassOfWarrantOrRightWeightedAverageExercisePriceExercisesInPeriod
Namespace Prefix: | dcth_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average exercise price for the number of warrants or rights issued for the unvested, forfeitable warrants or rights in period. + References No definition available. + Details
Name: | dcth_ClassOfWarrantOrRightWeightedAverageExercisePriceIssued
Namespace Prefix: | dcth_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | dcth_ClassOfWarrantOrRightWeightedAverageExercisePriceRollForward
Namespace Prefix: | dcth_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average remaining contractual term for each class of warrants or rights outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | dcth_ClassOfWarrantOrRightWeightedAverageRemainingContractualTerm
Namespace Prefix: | dcth_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | dcth_WarrantsOutstandingRollForward
Namespace Prefix: | dcth_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=dcth_WarrantsFebruaryTwoThousandAndEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=us-gaap_ConvertibleNotesPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |