XML 91 R76.htm IDEA: XBRL DOCUMENT v3.8.0.1

Convertible Notes Payable - Summary of Common Stock Shares Issued under Notes (Parenthetical) (Detail) - USD ($)												3 Months Ended	9 Months Ended		12 Months Ended
	Aug. 28, 2017	Aug. 04, 2017	Jul. 07, 2017	Jul. 02, 2017	May 09, 2017	Apr. 10, 2017	Mar. 13, 2017	Mar. 02, 2017	Feb. 10, 2017	Feb. 01, 2017	Jan. 12, 2017	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Debt Instrument [Line Items]
Reduction in Principal	$ 23,563,014	$ 1,015,848	$ 2,000,000		$ 1,913,915	$ 3,621,286	$ 4,417,830	$ 126,000	$ 3,045,817	$ 544,000	$ 1,478,318		$ 26,199,000	$ 0	$ 649,000
Loss on debt settlement												$ 2,952,000	$ 2,952,000	$ 0
Restructuring Agreement [Member]
Debt Instrument [Line Items]
Reduction in Principal	1,200,000
Loss on debt settlement	$ 2,000,000
Exchange Agreement [Member]
Debt Instrument [Line Items]
Reduction in Principal				$ 4,200,000
Loss on debt settlement				$ 1,000,000
Series A Preferred Stock [Member]
Debt Instrument [Line Items]
Number of shares issued				4,200
Series A Preferred Stock [Member] | Exchange Agreement [Member]
Debt Instrument [Line Items]
Number of shares issued				4,200
Common Stock Issued [Member]
Debt Instrument [Line Items]
Number of shares issued	1,418,948	38,906	114,286		109,367	169,061	117,297	2,571	43,882	4,857	11,753
Common Stock Issued [Member] | Restructuring Agreement [Member]
Debt Instrument [Line Items]
Number of shares issued	117,171
Common Stock Issued [Member] | Exchange Agreement [Member]
Debt Instrument [Line Items]
Number of shares issued				689,796

X

- Definition

Loss on debt settlement.

+ References

No definition available.

+ Details

Name:	dcth_LossOnDebtSettlement
Namespace Prefix:	dcth_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

+ Details

Name:	us-gaap_DebtConversionConvertedInstrumentSharesIssued1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

+ Details

Name:	us-gaap_DebtConversionOriginalDebtAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=dcth_RestructuringAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TransactionTypeAxis=dcth_ExchangeAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesAPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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