LEASES - Operating lease (Details) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2021 USD ($)	Jun. 30, 2021 USD ($) lease component facility	Jun. 30, 2020 USD ($)
LEASES
Amortization of operating lease	$ 292	$ 736
Amortization of right-of-use asset expense	25	97
Financing lease interest expense	46	$ 183	$ 200
Number of operating leases containing variable lease component \| lease		1
Number of components of the Company's revenue which triggers the variable lease component of one operating lease \| component		1
Number of facilities the Company serves as a lessor to a lessee \| facility		1
Variable payments for lease	$ 31	$ 177

The number of components of the Company's revenue which triggers the variable lease component of one operating lease.

No definition available.

Name:	notv_NumberOfComponentsOfCompanyRevenuesWhichTriggersVariableLeaseComponent
Namespace Prefix:	notv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- 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

- Definition

The number of operating leases which contain a variable lease component.

+ References

No definition available.

+ Details

Name:	notv_NumberOfOperatingLeasesContainingVariableLeaseComponent
Namespace Prefix:	notv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of amortization expense attributable to right-of-use asset from operating lease.

+ References

No definition available.

+ Details

Name:	notv_OperatingLeaseRightOfUseAssetAmortization
Namespace Prefix:	notv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of interest expense on finance lease liability.

+ 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 (a)
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977

Reference 3: 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=121568110&loc=SL77918982-209971

+ Details

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

- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

+ Details

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

- References

No definition available.

+ Details

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

- Definition

Amount of cash outflow for variable lease payment excluded from lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 5
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977

+ Details

Name:	us-gaap_VariableLeasePayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration