Date which lease or group of leases is set to expire, in YYYY-MM-DD format.

No definition available.

Name:	us-gaap_LeaseExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

+ Details

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

- Definition

Indicates (true false) whether lessee has option to extend operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

+ Details

Name:	us-gaap_LesseeOperatingLeaseExistenceOfOptionToExtend
Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.

+ References

+ Details

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

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-4

+ Details

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

- Definition

Lease commencement date.

+ References

No definition available.

+ Details

Name:	vktx_LeaseCommencementDate
Namespace Prefix:	vktx_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Operating lease number of leases.

+ References

No definition available.

+ Details

Name:	vktx_OperatingLeaseNumberOfLeases
Namespace Prefix:	vktx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Operating lease option to extend term.

+ References

No definition available.

+ Details

Name:	vktx_OperatingLeaseOptionToExtendTerm
Namespace Prefix:	vktx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_LeaseContractualTermAxis=vktx_OfficeLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Operating Leases - ROU Assets and Lease Liability Obligations - Additional Information (Detail)		3 Months Ended
	Nov. 15, 2021	Mar. 31, 2024 USD ($) Lease	Mar. 31, 2023 USD ($)
Lessee Lease Description [Line Items]
Operating lease number of leases \| Lease		1
Lease Commencement Date		Mar. 01, 2022
Lease expiration date		Jul. 31, 2027
Operating lease expense \| $		$ 86,000	$ 86,000
Operating lease option to extend term	5 years
Office Lease [Member]
Lessee Lease Description [Line Items]
Operating lease, option to extend		true
Operating lease option to extend term		5 years
Operating lease, option to extend, description		The Office Lease provides the Company with an option to extend the term of the Office Lease for a period of five years beyond the Term.