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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.

No definition available.

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Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).

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 210.9-03.13(3)(a))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Name:	us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2196772

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents deposits and securities sold under agreements to repurchase as of the balance sheet date.

No definition available.

Name:	wbhc_DepositsAndSecuritiesSoldUnderAgreementsToRepurchaseEstimatedFairValueDisclosure
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Interest Payable, Fair Value Disclosure

No definition available.

Name:	wbhc_InterestPayableFairValueDisclosure
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Interest Receivable, Fair Value Disclosure

No definition available.

Name:	wbhc_InterestReceivableFairValueDisclosure
Namespace Prefix:	wbhc_
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Period Type:	instant

Investment in Federal Home Loan Bank stock.

No definition available.

Name:	wbhc_RestrictedEquitySecurities
Namespace Prefix:	wbhc_
Data Type:	xbrli:monetaryItemType
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