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 http://asc.fasb.org/extlink&oid=123386189&loc=SL77918607-209975

+ Details

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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 http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980

+ Details

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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 http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
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 http://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

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 http://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

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

- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
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- Details

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- Details

Name:	us-gaap_LeaseContractualTermAxis=zom_WarehouseLeaseAgreementWithWickfieldPhoenixLlcMember
Namespace Prefix:
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- Details

Name:	us-gaap_LeaseContractualTermAxis=zom_AgreementWithUlfNorthfieldBusinessCenterLlcMember
Namespace Prefix:
Data Type:	na
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Leases - Narrative (Details) $ in Thousands				3 Months Ended			6 Months Ended
Leases - Narrative (Details) $ in Thousands	Apr. 01, 2022 USD ($) ft²	Sep. 15, 2021 USD ($)	Feb. 01, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Right-of-use asset				$ 1,638			$ 1,638		$ 1,320
Operating lease expense				179	$ 85		331	$ 176
Research and Development Expense [Member]
Operating lease expense				18	17		34	38
General and Administrative Expense [Member]
Operating lease expense				$ 161	$ 68		$ 297	$ 138
Wickfield Phoenix office lease [Member]
Operating lease term			48 months
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 [Member] \| Minimum [Member]
Monthly rent payment			$ 12
Wickfield Phoenix office lease [Member] \| Maximum [Member]
Monthly rent payment			$ 31
Wickfield Phoenix warehouse lease [Member]
Operating lease term		41 months
Right-of-use asset		$ 366
Discount rate (as a percent)		3.95%
Wickfield Phoenix warehouse lease [Member] \| Minimum [Member]
Monthly rent payment		$ 5
Wickfield Phoenix warehouse lease [Member] \| Maximum [Member]
Monthly rent payment		$ 10
ULF Northfield Business Center [Member]
Operating lease term	61 months
Right-of-use asset	$ 546
Discount rate (as a percent)	3.95%
Lease area \| ft²	12,400
ULF Northfield Business Center [Member] \| Minimum [Member]
Monthly rent payment	$ 9
ULF Northfield Business Center [Member] \| Maximum [Member]
Monthly rent payment	$ 11