XML 59 R36.htm IDEA: XBRL DOCUMENT v3.23.2

Summary of Significant Accounting Policies - Summary of Fair Value Hierarchy for Financial Assets and Liabilities Measured Recurring and Nonrecurring Basis (Detail) $ in Thousands	12 Months Ended
	Apr. 30, 2023 USD ($) compensation_plan	Apr. 30, 2022 USD ($) compensation_plan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	$ 2,463	$ 2,590
Financial Liabilities	$ 2,910	$ 3,003
Derivative Liability Statement Of Financial Position Extensible Enumeration Not Disclosed Flag	Total
Number of non-qualified compensation plans maintained | compensation_plan	2	2
Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag	Total
Trading Securities Held in Non-Qualified Compensation Plans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	$ 1,105	$ 1,219
Cash Surrender Value of Life Insurance Policies
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	1,358	1,371
Non Qualified Compensation Plans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	2,910	3,003
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	1,105	1,219
Level 1 | Trading Securities Held in Non-Qualified Compensation Plans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	1,105	1,219
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	1,358	1,371
Financial Liabilities	2,910	3,003
Level 2 | Cash Surrender Value of Life Insurance Policies
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	1,358	1,371
Level 2 | Non Qualified Compensation Plans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	$ 2,910	$ 3,003

X

- Definition

Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag

+ References

No definition available.

+ Details

Name:	kequ_DerivativeAssetStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag
Namespace Prefix:	kequ_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Derivative Liability Statement Of Financial Position Extensible Enumeration Not Disclosed Flag

+ References

No definition available.

+ Details

Name:	kequ_DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag
Namespace Prefix:	kequ_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of nonqualified compensation plans.

+ References

No definition available.

+ Details

Name:	kequ_NumberOfNonqualifiedCompensationPlans
Namespace Prefix:	kequ_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

+ Details

Name:	us-gaap_DerivativeAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313

+ Details

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

X

- Details

Name:	us-gaap_FairValueByAssetClassAxis=kequ_TradingSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByAssetClassAxis=us-gaap_CashSurrenderValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=kequ_NonQualifiedCompensationPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: