XML 167 R142.htm IDEA: XBRL DOCUMENT v3.26.1

SUBSEQUENT EVENTS (Details) Unit_Standard_pure_ItFMYXhfEkWGwmi5JuP6wQ in Millions	1 Months Ended					4 Months Ended
	Feb. 28, 2026 USD ($) CNY (¥)	Feb. 28, 2026 USD ($) item	Feb. 28, 2026 USD ($)	Feb. 28, 2026 USD ($)	Nov. 30, 2025 USD ($)	Apr. 16, 2026 item
Second Batch Of Default Under Loan Agreement, Tranches 3 To 5 And 7
SUBSEQUENT EVENTS
Number of notices received | item		5
Nanyang Biologics Private Ltd | Second Convertible Note Agreement
SUBSEQUENT EVENTS
Principal amount of convertible note					$ 1,000,000
Pre-Money equity valuation					50,000,000
Payments to acquire convertible debt					$ 1,000,000
SUBSEQUENT EVENTS
SUBSEQUENT EVENTS
Crypto asset, number of units received | item						1,425,000,000
Principal amount	$ 3,600,000	$ 3,600,000	$ 3,600,000	$ 3,600,000
SUBSEQUENT EVENTS | First Batch Of Default Under Loan Agreement, Tranches 3 To 7
SUBSEQUENT EVENTS
Number of notices received | item		5
Crypto asset transferred			0.5
SUBSEQUENT EVENTS | Tether | Second Batch Of Default Under Loan Agreement, Tranches 3 To 5 And 7
SUBSEQUENT EVENTS
Crypto asset transferred to cure default excluding single tranche default				$ 900,000
SUBSEQUENT EVENTS | Bitcoins
SUBSEQUENT EVENTS
Number of crypto asset pledged as collateral forfeited	48	48

X

- Definition

Number of crypto asset units received under gaming platform.

+ References

No definition available.

+ Details

Name:	ncty_CryptoAssetNumberOfUnitsReceived
Namespace Prefix:	ncty_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of crypto asset pledged as collateral forfeited upon termination of debt contract.

+ References

No definition available.

+ Details

Name:	ncty_CryptoAssetPledgedAsCollateralForfeitedNumber
Namespace Prefix:	ncty_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of crypto assets transferred to cure debt defaults for the tranches specified in the default notice, excluding a specific tranche that was not cured.

+ References

No definition available.

+ Details

Name:	ncty_DebtDefaultCryptoAssetTransferredToCureDefaultExcludingSingleTrancheDefault
Namespace Prefix:	ncty_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Number of crypto asset transferred to cure the default in connection with the debt instrument.

+ References

No definition available.

+ Details

Name:	ncty_DebtDefaultNumberOfCryptoAssetTransferred
Namespace Prefix:	ncty_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of default notices received under the debt instrument.

+ References

No definition available.

+ Details

Name:	ncty_DebtInstrumentDebtDefaultNumberOfNoticesReceived
Namespace Prefix:	ncty_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Principal amount of convertible note.

+ References

No definition available.

+ Details

Name:	ncty_InvestmentInConvertibleNotePrincipalAmount
Namespace Prefix:	ncty_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of cash outflows for the acquisition of convertible debt instruments issued by another entity.

+ References

No definition available.

+ Details

Name:	ncty_PaymentsToAcquireConvertibleDebtInstruments
Namespace Prefix:	ncty_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Equity valuation of the investee entity immediately prior to the financing transaction.

+ References

No definition available.

+ Details

Name:	ncty_PreMoneyEquityValuationOfInvestee
Namespace Prefix:	ncty_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of outstanding long-term debt or borrowing associated with any securities or credit agreement for which there has been a default in principal, interest, sinking fund, or redemption provisions, or any breach of covenant that existed at the end of the period and subsequently has not been cured.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

Name:	us-gaap_DebtDefaultLongtermDebtAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

+ Details

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

X

- Details

Name:	srt_StatementScenarioAxis=ncty_SecondBatchOfDefaultUnderLoanAgreementTranches3To5And7Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=ncty_NanyangBiologicsPrivateLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=ncty_SecondConvertibleNoteAgreementMember
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:

X

- Details

Name:	srt_StatementScenarioAxis=ncty_FirstBatchOfDefaultUnderLoanAgreementTranches3To7Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CryptoAssetAxis=ncty_TetherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CryptoAssetAxis=ncty_BitcoinsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: