Face (par) amount of debt instrument at time of issuance.

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+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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-Name Accounting Standards Codification
-Section S99
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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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

- Definition

Cash received for the settlement of litigation during the current period.

+ References

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

- 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

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

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=xxii_NotesPayableWithNcsuMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands			3 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	Oct. 31, 2025	Oct. 29, 2025	Sep. 30, 2025	Sep. 30, 2024	Dec. 22, 2023	Oct. 16, 2023
Subsequent Event [Line Items]
Principal balance						$ 3,800
Rate of interest			6.60%	8.30%	12.00%
Debt instrument term			9 months	10 months
Subsequent events
Subsequent Event [Line Items]
Cash received from the settlement		$ 9,500
Subsequent events \| Note payable with NCSU
Subsequent Event [Line Items]
Principal balance	$ 632
Rate of interest	7.00%
Debt instrument term	60 months