Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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

- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

+ Details

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

- 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

No definition available.

+ Details

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

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

+ Details

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

- Definition

The effective interest rate during the reporting period.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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

- Definition

Debt Instrument, Covenant Description, Maximum Debt To Tangible Net Worth Ratio

+ References

No definition available.

+ Details

Name:	visi_DebtInstrumentCovenantDescriptionMaximumDebtToTangibleNetWorthRatio
Namespace Prefix:	visi_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Covenant Description, Minimum Liquid Assets

+ References

No definition available.

+ Details

Name:	visi_DebtInstrumentCovenantDescriptionMinimumLiquidAssets
Namespace Prefix:	visi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Debt Instrument, Covenant Description, Minimum Tangible Net Worth, Period One

+ References

No definition available.

+ Details

Name:	visi_DebtInstrumentCovenantDescriptionMinimumTangibleNetWorthPeriodOne
Namespace Prefix:	visi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Debt Instrument, Covenant Description, Minimum Tangible Net Worth, Period Two

+ References

No definition available.

+ Details

Name:	visi_DebtInstrumentCovenantDescriptionMinimumTangibleNetWorthPeriodTwo
Namespace Prefix:	visi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Debt Instrument, Target Liquidity Ratio

+ References

No definition available.

+ Details

Name:	visi_DebtInstrumentTargetLiquidityRatio
Namespace Prefix:	visi_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility, Additional Borrowing Capacity

+ References

No definition available.

+ Details

Name:	visi_LineOfCreditFacilityAdditionalBorrowingCapacity
Namespace Prefix:	visi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Transferors Interests In Transferred Financial Assets, Maximum Investment Limit

+ References

No definition available.

+ Details

Name:	visi_TransferorsInterestsInTransferredFinancialAssetsMaximumInvestmentLimit
Namespace Prefix:	visi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Weekly Employee Compensation, Payroll Taxes and Payments to Vendors

+ References

No definition available.

+ Details

Name:	visi_WeeklyEmployeeCompensationPayrollTaxesAndPaymentsToVendors
Namespace Prefix:	visi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=visi_DZFinancingProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=visi_ShortTermFinancingProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=visi_LetterofCreditSecurityDepositMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=visi_LetterOfCreditCreditCardProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_FederalFundsEffectiveSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - Narrative (Details) - USD ($)			3 Months Ended			5 Months Ended	12 Months Ended
Debt - Narrative (Details) - USD ($)	Mar. 11, 2020	Jan. 14, 2020	Nov. 01, 2020	Feb. 02, 2020	Jan. 27, 2019	Aug. 02, 2020	Nov. 03, 2019	Jul. 19, 2019
Extinguishment of Debt [Line Items]
Approximate weekly employee compensation, payroll taxes and payments to vendors				$ 18,000,000
DZ Financing Program
Extinguishment of Debt [Line Items]
Accounts receivable securitization program, maximum investment limit								$ 115,000,000
Covenant, minimum tangible net worth, through fiscal 2019 (at least)							$ 30,000,000.0
Covenant, minimum tangible net worth				$ 40,000,000.0
Covenant, maximum debt to tangible net worth ratio				3
Covenant, minimum liquid assets				$ 15,000,000.0
Borrowing availability				11,300,000
Long-term debt				$ 55,000,000	$ 55,000,000
Interest rate during period				3.50%	4.10%
DZ Financing Program \| Subsequent Event
Extinguishment of Debt [Line Items]
Covenant, minimum tangible net worth	$ 40,000,000.0
DZ Financing Program \| Subsequent Event \| Forecast
Extinguishment of Debt [Line Items]
Covenant, minimum tangible net worth			$ 40,000,000.0			$ 35,000,000.0
DZ Financing Program \| Short Term Financing Program
Extinguishment of Debt [Line Items]
Line of credit, amount outstanding				$ 22,800,000
Long-term debt				55,000,000			$ 55,000,000
DZ Financing Program \| Letter of Credit
Extinguishment of Debt [Line Items]
Borrowing capacity of facility		$ 35,000,000.0
Line of credit, amount outstanding				24,200,000
DZ Financing Program \| Letter of Credit, Security Deposit
Extinguishment of Debt [Line Items]
Line of credit, amount outstanding				1,200,000
DZ Financing Program \| Letter of Credit, Credit Card Program
Extinguishment of Debt [Line Items]
Line of credit, amount outstanding				$ 200,000
DZ Financing Program \| Federal Funds Rate \| Letter of Credit
Extinguishment of Debt [Line Items]
Basis spread on variable rate		3.00%
DZ Financing Program \| Prime Rate \| Letter of Credit
Extinguishment of Debt [Line Items]
Basis spread on variable rate		2.50%
Minimum
Extinguishment of Debt [Line Items]
Target liquidity ratio				1.5
Minimum \| DZ Financing Program
Extinguishment of Debt [Line Items]
Additional borrowing capacity of facility								5,000,000.0
Maximum \| DZ Financing Program
Extinguishment of Debt [Line Items]
Additional borrowing capacity of facility								$ 7,000,000.0