XML 56 R35.htm IDEA: XBRL DOCUMENT
v3.19.2

Summary of Significant Accounting Policies - Summary of Fair Value Hierarchy for Financial Assets and Liabilities Measured Recurring and Nonrecurring Basis (Detail) $ in Thousands | Apr. 30, 2019 USD ($) compensation_plan | Apr. 30, 2018 USD ($)
--- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Assets | $ 3,133 | $ 4,115
Financial Liabilities | $ 3,520 | 4,467
Number of non-qualified compensation plans maintained | compensation_plan | 2 |
Trading Securities Held in Non-Qualified Compensation Plans |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Assets | $ 3,057 | 4,050
Cash Surrender Value of Life Insurance Policies |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Assets | 76 | 65
Non Qualified Compensation Plans |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Liabilities | 3,519 | 4,462
Interest Rate Swap Derivatives |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Liabilities | 1 | 5
Level 1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Assets | 3,057 | 4,050
Level 1 | Trading Securities Held in Non-Qualified Compensation Plans |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Assets | 3,057 | 4,050
Level 2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Assets | 76 | 65
Financial Liabilities | 3,520 | 4,467
Level 2 | Cash Surrender Value of Life Insurance Policies |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Assets | 76 | 65
Level 2 | Non Qualified Compensation Plans |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Liabilities | 3,519 | 4,462
Level 2 | Interest Rate Swap Derivatives |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Financial Liabilities | $ 1 | $ 5

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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://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 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 + 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_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
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: |