Stock-Based Compensation (Details 7) - 2015 Plan - $ / shares	6 Months Ended
Jun. 30, 2026	Dec. 31, 2025
Restricted Stock Units (RSUs) [Member]
Number Outstanding, shares	54,244	64,768
Exercise Price	$ 13.353	$ 13.600
Restricted Stock Units (RSUs) One [Member]
Number Outstanding, shares	500
Exercise Price	$ 12.020
Weighted Average Remaining Contractual Life (years)	9 months
Restricted Stock Units (RSUs) Two [Member]
Number Outstanding, shares	13,334
Exercise Price	$ 12.040
Weighted Average Remaining Contractual Life (years)	10 months 6 days
Restricted Stock Units (RSUs) Three [Member]
Number Outstanding, shares	1,667
Exercise Price	$ 12.602
Weighted Average Remaining Contractual Life (years)	1 year 18 days
Restricted Stock Units (RSUs) Four [Member]
Number Outstanding, shares	22,500
Exercise Price	$ 13.500
Weighted Average Remaining Contractual Life (years)	9 months 18 days
Restricted Stock Units (RSUs) Five [Member]
Number Outstanding, shares	14,108
Exercise Price	$ 14.000
Weighted Average Remaining Contractual Life (years)	3 months
Restricted Stock Units (RSUs) Six [Member]
Number Outstanding, shares	1,667
Exercise Price	$ 14.850
Weighted Average Remaining Contractual Life (years)	10 months 24 days
Restricted Stock Units (RSUs) Seven [Member]
Number Outstanding, shares	234
Exercise Price	$ 19.414
Weighted Average Remaining Contractual Life (years)	7 months 24 days
Restricted Stock Units (RSUs) Eight [Member]
Number Outstanding, shares	234
Exercise Price	$ 26.400
Weighted Average Remaining Contractual Life (years)	14 days

Number of options outstanding, including both vested and non-vested options.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (e)(1)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_PlanNameAxis=vnrx_TwoThousandFifteenPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=vnrx_RestrictedStockUnitsRSUOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=vnrx_RestrictedStockUnitsRSUTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=vnrx_RestrictedStockUnitsRSUThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=vnrx_RestrictedStockUnitsRSUFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=vnrx_RestrictedStockUnitsRSUFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=vnrx_RestrictedStockUnitsRSUSixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=vnrx_RestrictedStockUnitsRSUSevenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=vnrx_RestrictedStockUnitsRSUEightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: