Area of a real estate property.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

Name:	us-gaap_AreaOfRealEstateProperty
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
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 1
-Publisher FASB
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Name:	us-gaap_GainLossOnTerminationOfLease
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

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

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

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-SubTopic 20
-Name Accounting Standards Codification
-Section 45
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-Subparagraph (b)
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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

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-SubTopic 20
-Name Accounting Standards Codification
-Section 45
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-Subparagraph (a)
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
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Balance Type:	debit
Period Type:	duration

- Definition

Amount of derecognized deferred rent.

+ References

No definition available.

+ Details

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

- Definition

Amount of write off of operating lease liability.

+ References

No definition available.

+ Details

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Namespace Prefix:	vtsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of write off of operating lease right of use assets.

+ References

No definition available.

+ Details

Name:	vtsi_OperatingLeaseRightOfUseAssetWriteoff
Namespace Prefix:	vtsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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

Note 6 - Leases (Details Textual)				6 Months Ended		12 Months Ended
Note 6 - Leases (Details Textual)	Jun. 30, 2026 USD ($) Rate	Jun. 01, 2022 USD ($) ft²	Jan. 01, 2019 USD ($)	Jun. 30, 2026 USD ($) Rate	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability		$ 840,855	$ 1,721,380
Deferred Rent, Derecognized			46,523
Operating Lease, Right-of-Use Asset	$ 0		$ 1,674,857	$ 0		$ 268,873	$ 437,095
Operating Lease, Right of Use Asset, Write-off				196,099		$ (0)
Gain (Loss) on Termination of Lease				(2,706)	$ (0)
Operating Lease, Expense				$ 76,675	$ 93,624
Challenger Parkway, Orlando, Florida [Member]
Area of Real Estate Property (Square Foot) \| ft²		9,350
Lessee, Operating Lease, Discount Rate (Rate) \| Rate	450.00%			450.00%
Operating Lease, Right of Use Asset, Write-off	$ 196,099
Operating Lease, Liability, Write-off	209,372
Gain (Loss) on Termination of Lease	$ (2,706)