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LEASES - Operating and Finance leases (Details) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2022 USD ($) facility | Sep. 30, 2021 USD ($)
LEASES |  |
Number of facilities the Company serves as a lessor to a lessee | facility | 5 |
Rental income | $ | $ 2,067 | $ 657

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- Definition The number of facilities the Company serves as a lessor to a lessee. + References No definition available. + Details
Name: | notv_NumberOfFacilitiesCompanyServesAsLessorToLessee
Namespace Prefix: | notv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of sublease income excluding finance and operating lease expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
Name: | us-gaap_SubleaseIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration