SUPPLEMENTAL BALANCE SHEET INFORMATION - Trade Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Trade receivables and contract assets
Trade receivables	$ 77,618	$ 88,867
Unbilled revenue	17,211	17,474
Total	94,829	106,341
Less: Allowance for credit losses	(7,446)	(6,268)
Trade receivables and contract assets, net of allowances for credit losses	$ 87,383	$ 100,073

Carrying amount as of the balance sheet date of gross trade receivables and contract assets.

No definition available.

Name:	notv_ContractWithCustomerAssetsAndReceivablesBeforeAllowanceForCreditLossCurrent
Namespace Prefix:	notv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of trade receivables and contract assets, after allowance for credit loss.

+ References

No definition available.

+ Details

Name:	notv_ContractWithCustomerReceivableAfterAllowanceForCreditLossAndContractWithCustomerAssetAfterAllowanceForCreditLossCurrent
Namespace Prefix:	notv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Contract With Customer, Receivable, Allowance For Credit Loss, And Contract With Customer, Receivable, Credit Loss Expense (Reversal), Current

+ References

No definition available.

+ Details

Name:	notv_ContractWithCustomerReceivableAllowanceForCreditLossAndContractWithCustomerReceivableCreditLossExpenseReversalCurrent
Namespace Prefix:	notv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	notv_TradeReceivablesAndContractAssetsNetAbstract
Namespace Prefix:	notv_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479837/606-10-45-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479837/606-10-45-3

+ Details

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

- Definition

Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right to consideration is unconditional, classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479837/606-10-45-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-SubTopic 10
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479837/606-10-45-4

+ Details

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