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Investments - Unrealized gains and losses (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Investments |  |
Unrealized Gains | $ 14 | $ 5
Unrealized Losses | $ (50) | $ (112)

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

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- Definition Amount of unrealized gain on investment in marketable security. + References No definition available. + Details
Name: | weys_MarketableSecuritiesUnrealizedGain
Namespace Prefix: | weys_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount of unrealized loss on investment in marketable security. + References No definition available. + Details
Name: | weys_MarketableSecuritiesUnrealizedLoss
Namespace Prefix: | weys_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration