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Commitments and Contingencies (Details) - USD ($) $ in Thousands | 6 Months Ended |
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Jul. 02, 2022 | Jan. 01, 2022
Commitments and Contingencies Disclosure [Abstract] |  |
Banker's acceptance drafts, maturity period (in months) | 6 months |
Banker's acceptance drafts with recourse | $ 11,080 | $ 9,593

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- Definition Bank Acceptance, Maturity Period + References No definition available. + Details
Name: | kai_BankAcceptanceMaturityPeriod
Namespace Prefix: | kai_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of the financial institution's obligation to pay the holder of the customer's draft which the financial institution has guaranteed (i.e., Banker's Acceptance). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.14) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
Name: | us-gaap_BankAcceptancesExecuted
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration