XML 92 R63.htm IDEA: XBRL DOCUMENT
v3.26.1

Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Apr. 30, 2026 | Apr. 30, 2025
Income Taxes [Line Items] |  |
Deferred tax asset, Section 174 addback | $ 1,892,000 | $ 3,269,000
Additional valuation allowance | 165,000 |
Deferred tax asset valuation allowance | 768,000 | 933,000
Foreign tax credit carryforwards | 638,000 | 638,000
Increase (decrease) in valuation allowance | $ 5,000 | 7,000
Minimum |  |
Income Taxes [Line Items] |  |
Federal, state and local tax returns period (in years) | 3 years |
Foreign subsidiaries tax returns period (in years) | 3 years |
Maximum |  |
Income Taxes [Line Items] |  |
Federal, state and local tax returns period (in years) | 4 years |
Foreign subsidiaries tax returns period (in years) | 7 years |
India Income Tax Department |  |
Income Taxes [Line Items] |  |
Tax withholding expense | $ 437,000 | $ 416,000

X
- Definition Deferred Tax Assets, Section 174 R&E Addback + References No definition available. + Details
Name: | kequ_DeferredTaxAssetsSection174REAddback
Namespace Prefix: | kequ_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Additional Valuation Allowance, Amount + References No definition available. + Details
Name: | kequ_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsAdditionalValuationAllowanceAmount
Namespace Prefix: | kequ_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Federal, state and local tax returns period + References No definition available. + Details
Name: | kequ_FederalStateAndLocalTaxReturnsPeriod
Namespace Prefix: | kequ_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Foreign subsidiaries tax returns period. + References No definition available. + Details
Name: | kequ_ForeignSubsidiariesTaxReturnsPeriod
Namespace Prefix: | kequ_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Income Taxes [Line Items] + References No definition available. + Details
Name: | kequ_IncomeTaxesLineItems
Namespace Prefix: | kequ_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tax Withholding Expense + References No definition available. + Details
Name: | kequ_TaxWithholdingExpense
Namespace Prefix: | kequ_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
Name: | us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Subparagraph (a)(6) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
Name: | us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityNameAxis=us-gaap_MinistryOfFinanceIndiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |