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Stock Based Compensation (Details) (Stock Options [Member], Directors, officers and employees [Member], USD $)
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3 Months Ended | 12 Months Ended |
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Mar. 31, 2015
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Dec. 31, 2014
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Stock Options [Member] | Directors, officers and employees [Member]
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| Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant [Roll Forward] | ||
| Shares Available for Grant, Outstanding, Beginning Balance |
809,074us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
4,485,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Shares Available for Grant, Additional stock reserved |
7,500,000wkhs_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAdditionalStockReversed / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
5,000,000wkhs_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAdditionalStockReversed / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Shares Available for Grant, Granted |
(7,500,000)wkhs_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantGranted / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
(8,675,926)wkhs_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantGranted / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Shares Available for Grant, Exercised | ||
| Shares Available for Grant, Forfeited | ||
| Shares Available for Grant, Expired | ||
| Shares Available for Grant, Outstanding, Ending Balance |
809,074us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
809,074us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] | ||
| Number of Shares, Outstanding, Beginning balance |
16,670,674us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
7,994,748us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Number of Shares, Outstanding, Additional stock reserved | ||
| Number of Shares, Granted |
7,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
8,675,926us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Number of Shares, Exercised |
(18,750)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
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| Number of Shares, Forfeited | ||
| Number of Shares, Expired | ||
| Number of Shares, Outstanding, Ending balance |
24,151,924us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
16,670,674us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] | ||
| Weighted Average Exercise Price per Share, Beginning Balance |
$ 0.23us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
$ 0.45us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Weighted Average Exercise Price per Share, Granted |
$ 0.15us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
$ 0.05us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Weighted Average Exercise Price per Share, Exercised |
$ 0.01us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
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| Weighted Average Exercise Price per Share, Forfeited | ||
| Weighted Average Exercise Price per Share, Expired | ||
| Weighted Average Exercise Price per Share, Ending Balance |
$ 0.34us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
$ 0.23us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Weighted Average Grant Date Fair Value [Roll Forward] | ||
| Weighted Average Grant Date Fair Value per Share, Beginning Balance |
$ 0.15wkhs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
$ 0.23wkhs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Weighted Average Grant Date Fair Value per Share, Granted |
$ 0.07us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
$ 0.08us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Weighted Average Grant Date Fair Value per Share, Exercised |
$ 0.09wkhs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
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| Weighted Average Grant Date Fair Value per Share, Forfeited | ||
| Weighted Average Grant Date Fair Value per Share, Expired | ||
| Weighted Average Grant Date Fair Value per Share, Ending Balance |
$ 0.15wkhs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
$ 0.15wkhs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsOfficersAndEmployeesMember |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] | ||
| Weighted Average Remaining Exercise Term in Months, Beginning Balance | 41 months | 36 months |
| Weighted Average Remaining Exercise Term in Months, Granted | 34 months | 58 months |
| Weighted Average Remaining Exercise Term in Months, Exercised | 60 months | |
| Weighted Average Remaining Exercise Term in Months, Ending Balance | 41 months | 41 months |
| X | ||||||||||
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- Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
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- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
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- Definition
Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. No definition available.
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- Definition
Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
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- Definition
Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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| X | ||||||||||
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- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Share based compensation arrangement by share based payment award number of shares available for grant additional stock reversed. No definition available.
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- Definition
Share based compensation arrangement by share based payment award number of shares available for grant exercised. No definition available.
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| X | ||||||||||
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- Definition
Share based compensation arrangement by share based payment award number of shares available for grant expired. No definition available.
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| X | ||||||||||
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- Definition
Share based compensation arrangement by share based payment award number of shares available for grant forfeited. No definition available.
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| X | ||||||||||
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- Definition
Share based compensation arrangement by share based payment award number of shares available for grant granted. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Share based compensation arrangement by share based payment award options additional stock reversed. No definition available.
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| X | ||||||||||
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- Definition
Weighted average fair value as of the grant date of stock (unit) option plans that were exercised during the period. No definition available.
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| X | ||||||||||
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- Definition
Weighted average fair value at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. No definition available.
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| X | ||||||||||
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- Definition
Weighted average fair value as of the grant date of stock (unit) option plans that were forfeited during the period. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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| X | ||||||||||
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- Definition
The weighted average fair value of option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan). No definition available.
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| X | ||||||||||
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- Definition
Weighted average remaining exercise term of options forfeited. No definition available.
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| X | ||||||||||
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- Definition
Weighted average remaining exercise term of options granted. No definition available.
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