Area of a real estate property.

No definition available.

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

- Definition

Amount of gain (loss) on termination of lease before expiration of lease term.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 40
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=123386189&loc=SL77918607-209975

+ Details

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

- Definition

Discount rate used by lessee to determine present value of operating lease payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)(3)
-URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980

+ Details

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

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977

+ Details

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

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

+ Details

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

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

+ Details

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

- Definition

The amount of monthly rent payment due under lease.

+ References

No definition available.

+ Details

Name:	zom_MonthlyRentPayment
Namespace Prefix:	zom_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
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- Details

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- Details

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- Details

Name:	us-gaap_LeaseContractualTermAxis=zom_AgreementWithUlfNorthfieldBusinessCenterLlcMember
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Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_LeaseContractualTermAxis=zom_AgreementWithLebow1031LegacyLlcMember
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Leases (Details) $ in Thousands					3 Months Ended			9 Months Ended
Leases (Details) $ in Thousands	Jul. 01, 2022 USD ($) ft²	Apr. 01, 2022 USD ($) ft²	Sep. 15, 2021 USD ($)	Feb. 01, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Operating Lease, Right-of-Use Asset					$ 1,567			$ 1,567		$ 1,320
Operating lease expense					268	$ 94		598	$ 271
Operating lease liability					1,636			1,636		$ 1,379
Research and development expenses
Operating lease expense					15	32		48	69
General and administrative expenses
Operating lease expense					$ 253	$ 62		$ 550	$ 202
Wickfield Phoenix office lease
Operating lease term				48 months
Operating Lease, Right-of-Use Asset				$ 1,258
Discount rate (as a percent)				3.95%
(Gain) loss on right-of-use assets							$ 24
Wickfield Phoenix office lease \| Minimum
Monthly rent payment				$ 12
Wickfield Phoenix office lease \| Maximum
Monthly rent payment				$ 31
Wickfield Phoenix warehouse lease
Operating lease term			41 months
Operating Lease, Right-of-Use Asset			$ 366
Discount rate (as a percent)			3.95%
Wickfield Phoenix warehouse lease \| Minimum
Monthly rent payment			$ 5
Wickfield Phoenix warehouse lease \| Maximum
Monthly rent payment			$ 10
ULF Northfield Business Center
Operating lease term		61 months
Operating Lease, Right-of-Use Asset		$ 546
Discount rate (as a percent)		3.95%
Lease area \| ft²		12,400
ULF Northfield Business Center \| Minimum
Monthly rent payment		$ 9
ULF Northfield Business Center \| Maximum
Monthly rent payment		$ 11
Lebow 1031 Legacy
Operating lease term	18 months
Monthly rent payment	$ 4
Operating Lease, Right-of-Use Asset	$ 67
Discount rate (as a percent)	7.00%
Lease area \| ft²	4,626