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Item 5 - Other Information (Details Textual) | 3 Months Ended
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Jul. 01, 2023 shares
Jeffrey D. Jones, Senior Vice President, Finance & CFO [Member] |
Issuer Rule 10b5-1, Arrangement Adoption Date | May 23, 2023
Issuer Rule 10b5-1, Arrangement Termination Date | May 07, 2023
Issuer Rule 10b5-1, Aggregate Available Shares (in shares) | 40,000
Steven J. Bilodeau, Director [Member] |
Issuer Rule 10b5-1, Arrangement Adoption Date | May 23, 2023
Issuer Rule 10b5-1, Arrangement Termination Date | May 23, 2024
Issuer Rule 10b5-1, Aggregate Available Shares (in shares) | 9,000
William E. Bendush, Director [Member] |
Issuer Rule 10b5-1, Arrangement Adoption Date | May 23, 2023
Issuer Rule 10b5-1, Arrangement Termination Date | May 31, 2024
Issuer Rule 10b5-1, Aggregate Available Shares (in shares) | 5,091

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- Definition The aggregate number of shares available to be issued under issuer rule 10b5-1. We will use TitleOfIndividualAxis with appropriate members of the name of their job to differentiate between the different executives. + References No definition available. + Details
Name: | cohu_IssuerRule10b51AggregateAvailableShares
Namespace Prefix: | cohu_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition The date the arrangement is adopted under issuer rule 10b5-1, in YYYY-MM-DD format. + References No definition available. + Details
Name: | cohu_IssuerRule10b51ArrangementAdoptionDate
Namespace Prefix: | cohu_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition The date the arrangement is terminated under issuer rule 10b5-1, in YYYY-MM-DD format. + References No definition available. + Details
Name: | cohu_IssuerRule10b51ArrangementTerminationDate
Namespace Prefix: | cohu_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_TitleOfIndividualAxis=cohu_JeffreyDJonesSeniorVicePresidentFinanceCfoMember
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Data Type: | na
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- Details
Name: | srt_TitleOfIndividualAxis=cohu_StevenJBilodeauDirectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
Name: | srt_TitleOfIndividualAxis=cohu_WilliamEBendushDirectorMember
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Data Type: | na
Balance Type: |
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