XML 51 R41.htm IDEA: XBRL DOCUMENT
v3.22.1

Loans and Convertible Notes Payable - Summary of Loans and Convertible Notes Payable (Details) (Parenthetical) | 3 Months Ended
--- | ---
Mar. 31, 2022 USD ($)
Equity Method Investments And Cost Method Investments [Abstract] |
Percentage of final payment included in gross amount | 4.25%
Final payment | $ 638,000

X
- Definition Equity Method Investments And Cost Method Investments [Abstract] + References No definition available. + Details
Name: | dcth_EquityMethodInvestmentsAndCostMethodInvestmentsAbstract
Namespace Prefix: | dcth_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Final payment. + References No definition available. + Details
Name: | dcth_FinalPayment
Namespace Prefix: | dcth_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage of final payment included in gross amount. + References No definition available. + Details
Name: | dcth_PercentageOfFinalPaymentIncludedInGrossAmount
Namespace Prefix: | dcth_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration