v3.20.4

Related Parties (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Assured Partners LP |  |
Related Party Transaction [Line Items] |  |
Premiums paid | $ 121 | $ 86

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

X
- Definition Payments For Business and Casualty Insurance + References No definition available. + Details
Name: | wkhs_PaymentsForBusinessAndCasualtyInsurance
Namespace Prefix: | wkhs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=wkhs_AssuredPartnersLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |