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Financial Instruments (Details Textual) - Sep. 30, 2017 CAD in Millions, $ in Millions	USD ($)	CAD	EUR (€)	AUD
Financial Instruments [Line Items]
Investment Owned, Foreign Currency Contract, Current Value | AUD				AUD 299,000
Foreign Exchange Contract [Member]
Financial Instruments [Line Items]
Investment Owned, Foreign Currency Contract, Current Value | €			€ 200,000
Foreign Exchange Contracts, Australian [Member]
Financial Instruments [Line Items]
Investment Owned, Foreign Currency Contract, Current Value	$ 3.7			AUD 4,700,000
Foreign Exchange Contracts, Canadian [Member]
Financial Instruments [Line Items]
Investment Owned, Foreign Currency Contract, Current Value	$ 6.0	CAD 8.0

X

- Definition

Amount the entity is obligated or for which it has the option to buy or sell the foreign currency contract.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

Name:	weys_FinancialInstrumentsLineItems
Namespace Prefix:	weys_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=weys_ForeignExchangeContractsAustralianMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=weys_ForeignExchangeContractsCanadianMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: