Debt instrument principal payment.

No definition available.

Name:	qtnt_DebtInstrumentPrincipalPayment
Namespace Prefix:	qtnt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of ordinary shares.

+ References

No definition available.

+ Details

Name:	qtnt_NumberOfOrdinaryShares
Namespace Prefix:	qtnt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Purchase of additional ordinary shares.

+ References

No definition available.

+ Details

Name:	qtnt_PurchaseOfAdditionalOrdinaryShares
Namespace Prefix:	qtnt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

WarrantsExercisablePercentage

+ References

No definition available.

+ Details

Name:	qtnt_WarrantsExercisablePercentage
Namespace Prefix:	qtnt_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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

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

- Definition

The cash inflow associated with the amount received from entity's first offering of stock to the public.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceInitialPublicOffering
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

+ References

+ Details

Name:	us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 210
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=120413173&loc=SL6242262-115580

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 210
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=120413209&loc=SL6242269-115581

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=qtnt_CommonStockAndWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
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Balance Type:
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- Details

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Subsequent Events - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions				12 Months Ended
	Oct. 25, 2025	Jun. 24, 2022	Jun. 23, 2022	Jul. 15, 2025
Subsequent Event [Member]
Subsequent Event [Line Items]
Aggregate gross proceeds from underwritten public offering		$ 20.0
Number Of Ordinary Shares		66,666,667
Net proceeds from issuance of shares		$ 18.5
Additional number of ordinary shares purchased		10,000,000
Warrants Exercisable Percentage			5.00%
Subsequent Event [Member] \| Common Stock And Warrants [Member]
Subsequent Event [Line Items]
Exercise price of warrants			$ 0.75
Secured Notes [Member]
Subsequent Event [Line Items]
Proceeds from issuance of long term debt			$ 132.9
Secured Notes [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Debt Instrument Principal Payment	$ 93.0			$ 2.5
Cash and other benefits reserved			8.0
Secured Notes [Member] \| Subsequent Event [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Debt Instrument Principal Payment			24.2
Secured Notes [Member] \| Subsequent Event [Member] \| Minimum [Member]
Subsequent Event [Line Items]
Debt Instrument Principal Payment			$ 12.1