POST EMPLOYMENT BENEFITS - Discount rate and Rate of compensation increases (Details)	12 Months Ended
Sep. 30, 2024	Sep. 30, 2023
Retirement Benefits [Abstract]
Percentage of long-term rate of return assumption	5.20%
Discount rate	5.04%	5.67%
Rate of compensation increases	0.00%	0.00%

Expected long-term rate-of-return assumption for plan asset of defined benefit plan.

No definition available.

Name:	notv_DefinedBenefitPlanPlanAssetsExpectedLongTermRateOfReturnAssumptionPercent
Namespace Prefix:	notv_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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Period Type:	duration

- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

+ Details

Name:	us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

+ Details

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