XML 46 R35.htm IDEA: XBRL DOCUMENT
v3.22.1

Summary of Significant Accounting Policies - Additional Information (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021
Summary Of Significant Accounting Policies [Line Items] |
Maximum period of investments with original maturities from date of acquisition to be cash equivalents | 3 months
Minimum [Member] |
Summary Of Significant Accounting Policies [Line Items] |
Property, plant and equipment, estimated useful life | 3 years
Maximum [Member] |
Summary Of Significant Accounting Policies [Line Items] |
Property, plant and equipment, estimated useful life | 7 years

X
- Definition The entity considers investments with original maturities of certain months or less at the date of acquisition to be cash equivalents. + References No definition available. + Details
Name: | dcth_MaximumPeriodOfInvestmentsWithOriginalMaturitiesFromDateOfAcquisitionToBeCashEquivalents
Namespace Prefix: | dcth_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Summary of significant accounting policies. + References No definition available. + Details
Name: | dcth_SummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix: | dcth_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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: |