Quarterly report pursuant to Section 13 or 15(d)

Subscription Agreements (Details)

v2.4.1.9
Subscription Agreements (Details) (USD $)
0 Months Ended 3 Months Ended
Dec. 30, 2014
Dec. 08, 2014
Nov. 24, 2014
Mar. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]          
Exercise price of warrants         $ 0.14us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Warrant [Member] | Securities Purchase Agreements And Security Agreements [Member]          
Debt Instrument [Line Items]          
Warrant exercisable price $ 343,000us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ wkhs_AgreementAxis
= wkhs_SecuritiesPurchaseAgreementsAndSecurityAgreementsMember
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
$ 700,000us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ wkhs_AgreementAxis
= wkhs_SecuritiesPurchaseAgreementsAndSecurityAgreementsMember
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
$ 200,000us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ wkhs_AgreementAxis
= wkhs_SecuritiesPurchaseAgreementsAndSecurityAgreementsMember
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
   
Unsecured convertible promissory [Member] | Warrant [Member]          
Debt Instrument [Line Items]          
Exercise price of warrants       $ 0.14us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_CommercialPaperMember
 
Secured convertible debentures       $ 1,242,900us-gaap_DebtInstrumentFaceAmount
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_CommercialPaperMember
 
Unsecured convertible promissory percentage       14.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_CommercialPaperMember
 
Common stock purchase warrants       4,439,287us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_CommercialPaperMember
 
Maturity term       5 years