XML 80 R50.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Sale of Recycling Subsidiaries - Additional Information (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 09, 2023 | Dec. 30, 2023 | Dec. 30, 2023 | Dec. 31, 2022
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Excess of book value over assets disposed, extensible list |  |  | disposition |
Write off of VM7 note receivable |  |  | $ (5,320) | $ 0
Gulf Coast Bank and Trust Credit Facility | Financial Guarantee |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Guarantor obligations, current carrying value |  | $ 1,700 | 1,700 |
Sale of Recycling Subsidiaries | ARCA And Subsidiaries |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Reduction in liabilities | $ 17,600 |  |  |
Aggregate monthly payments from the buyer | $ 24,000 |  |  |
Aggregate monthly payments from buyer, period (years) | 5 years |  |  |
Aggregate monthly pre-payments | $ 1,000 |  |  |
Additional proceeds received for the equity of each subsidiary | 1 |  |  |
Minimum monthly payments | $ 140 |  |  |
Aggregate payment period (years) | 15 years |  |  |
Amount of the reduction percentage (percent) | 50.00% |  |  |
Consideration received on transaction | $ 1,600 |  |  |
Consideration paid at close of transactions | $ 3 |  |  |
Discount rate percentage (percent) | 20.00% |  |  |
Discount recorded as offset to the principal amount | $ 6,000 |  |  |
Net consideration | 6,000 |  |  |
Book value in excess of assets disposed of | 9,800 |  |  |
Write off of VM7 note receivable |  | 5,300 |  |
Preliminary calculation of gain on sale | $ 15,800 |  |  |
Sale of Recycling Subsidiaries | ARCA And Subsidiaries | Relevant Month 1 |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Percentage of gross revenue (percent) | 5.00% |  |  |
Subsidiary's revenue benchmark | $ 2,000 |  |  |
Sale of Recycling Subsidiaries | ARCA And Subsidiaries | Relevant Month 2 |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Percentage of gross revenue (percent) | 4.00% |  |  |
Sale of Recycling Subsidiaries | ARCA And Subsidiaries | Relevant Month 3 |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Percentage of gross revenue (percent) | 3.00% |  |  |
Subsidiary's revenue benchmark | $ 3,000 |  |  |
Sale of Recycling Subsidiaries | ARCA And Subsidiaries | Minimum |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Minimum monthly payments | 100 |  |  |
Sale of Recycling Subsidiaries | ARCA And Subsidiaries | Minimum | Relevant Month 2 |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Subsidiary's revenue benchmark | 2,000 |  |  |
Sale of Recycling Subsidiaries | ARCA And Subsidiaries | Maximum | Relevant Month 2 |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Subsidiary's revenue benchmark | $ 3,000 |  |  |
Sale of Recycling Subsidiaries | Gulf Coast Bank and Trust Credit Facility | Financial Guarantee |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Guarantor obligations, current carrying value |  | $ 2,000 | $ 2,000 |

X
- Definition Disposal Group, Including Discontinued Operation, Net Consideration + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationNetConsideration
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Disposal Group, Including Discontinued Operations, Aggregate Monthly Minimum Payments from Buyer + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsAggregateMonthlyMinimumPaymentsFromBuyer
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Aggregate Monthly Payment, Payment Period + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsAggregateMonthlyPaymentPaymentPeriod
Namespace Prefix: | jan_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Aggregate Monthly Payment, Percentage of Gross Revenue + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsAggregateMonthlyPaymentPercentageOfGrossRevenue
Namespace Prefix: | jan_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Aggregate Monthly Payment, Subsidiary Revenue Benchmark + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsAggregateMonthlyPaymentSubsidiaryRevenueBenchmark
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Aggregate Monthly Payments from Buyer + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsAggregateMonthlyPaymentsFromBuyer
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Aggregate Monthly Payments From Buyer, Period + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsAggregateMonthlyPaymentsFromBuyerPeriod
Namespace Prefix: | jan_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Aggregate Monthly Payments From Buyer, Prepayment + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsAggregateMonthlyPaymentsFromBuyerPrepayment
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Asset Acquisition, Consideration Transferred, At Closure + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsAssetAcquisitionConsiderationTransferredAtClosure
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Consideration Received on Transaction + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsConsiderationReceivedOnTransaction
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Discount Rate Percentage + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsDiscountRatePercentage
Namespace Prefix: | jan_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Payment Receivable, Percentage Of Difference Between Assessment And Settlement Value + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsPaymentReceivablePercentageOfDifferenceBetweenAssessmentAndSettlementValue
Namespace Prefix: | jan_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Present Value Of Discount Recorded As Offset To The Principal Amount + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsPresentValueOfDiscountRecordedAsOffsetToThePrincipalAmount
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Disposal Group, Including Discontinued Operations, Proceeds Received For Equity Of Each Subsidiary + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsProceedsReceivedForEquityOfEachSubsidiary
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Reduction In Liabilities + References No definition available. + Details
Name: | jan_DisposalGroupIncludingDiscontinuedOperationsReductionInLiabilities
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Disposal Group, Not Discontinued Operation, Book Value In Excess Of Assets + References No definition available. + Details
Name: | jan_DisposalGroupNotDiscontinuedOperationBookValueInExcessOfAssets
Namespace Prefix: | jan_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Disposal Group Not Discontinued Operation Gain (Loss) On Disposal, Statement Of Income Extensible List Not Disclosed Flag + References No definition available. + Details
Name: | jan_DisposalGroupNotDiscontinuedOperationGainLossOnDisposalStatementOfIncomeExtensibleListNotDisclosedFlag
Namespace Prefix: | jan_
Data Type: | xbrli:tokenItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482130/360-10-45-5 + Details
Name: | us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, before tax, of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a disposal group. Excludes discontinued operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 5 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482130/360-10-45-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-3 + Details
Name: | us-gaap_DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-4 + Details
Name: | us-gaap_GuaranteeObligationsCurrentCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=jan_GulfCoastBankAndTrustCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_FinancialGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=jan_ARCAAndSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jan_DisposalGroupConsiderationPaymentPeriodAxis=jan_RelevantMonth1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jan_DisposalGroupConsiderationPaymentPeriodAxis=jan_RelevantMonth2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jan_DisposalGroupConsiderationPaymentPeriodAxis=jan_RelevantMonth3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |