XML 53 R41.htm IDEA: XBRL DOCUMENT v3.21.2

Stockholders' Equity - Common Stock Issuances - Additional Information (Details)	6 Months Ended
	Jun. 30, 2021 $ / shares shares
Stockholders Equity Note [Line Items]
Common stock associated with the exercise of warrants | shares	458,661
Warrants Exercise Price | $ / shares	$ 10.00
Pre Funded Warrants
Stockholders Equity Note [Line Items]
Prefunded Warrants | shares	215,000
Warrants Exercise Price | $ / shares	$ 0.01

X

- Definition

Stock Issued During Period Shares associated with warrants.

+ References

No definition available.

+ Details

Name:	dcth_StockIssuedDuringPeriodSharesAssociatedWithWarrants
Namespace Prefix:	dcth_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

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

Warrants issued to purchase of common stock.

+ References

No definition available.

+ Details

Name:	dcth_WarrantsIssuedToPurchaseOfCommonStock
Namespace Prefix:	dcth_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=dcth_PreFundedWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: