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Common Stock, Stock Options and Warrants (Details) - Summary of common stock reserved for future issuances	12 Months Ended
	Sep. 30, 2021 shares
Summary of common stock reserved for future issuances [Abstract]
Stock plan options outstanding	5,755,171
Stock plan shares available for future grants	7,530,000
Warrants outstanding	40,208,347
Total	53,493,518

X

- Definition

The amount of common stock reserved.

+ References

No definition available.

+ Details

Name:	ctxr_CommonStockReserved
Namespace Prefix:	ctxr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	ctxr_SummaryOfCommonStockReservedForFutureIssuancesAbstract
Namespace Prefix:	ctxr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of warrants.

+ References

No definition available.

+ Details

Name:	ctxr_Warrants
Namespace Prefix:	ctxr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Net number of non-option equity instruments granted to participants.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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

X

- Definition

The increase or decrease in number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding, including vested options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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