XML 1033 R75.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Basis of Consolidated Financial Statement Presentation - Additional Information (Details) - Common Stock [Member]	Dec. 24, 2019	Oct. 22, 2019	Sep. 17, 2019	May 02, 2018	Nov. 06, 2017
Stockholders Equity Note [Line Items]
Reverse stock split ratio			0.01	0.002	0.0029
Reverse stock split			1:100	1:500	1:350
Subsequent Event [Member]
Stockholders Equity Note [Line Items]
Reverse stock split ratio	0.0014	0.01
Reverse stock split	1:700	1:100

X

- Definition

Stockholders equity note.

+ References

No definition available.

+ Details

Name:	dcth_StockholdersEquityNoteLineItems
Namespace Prefix:	dcth_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Description of the stock split arrangement. Also provide the retroactive effect given by a stock split that occurs after the balance date but before the release of financial statements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

+ Details

Name:	us-gaap_StockholdersEquityNoteStockSplit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

+ Details

Name:	us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: