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Stock Based Compensation (Details 3) (Warrant [Member], Directors and officers [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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Warrant [Member] | Directors and officers [Member]
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| Warrant Shares Available For Grant [Roll Forward] | ||
| Shares Available For Grant, Outstanding, Beginning Balance |
3,489,250wkhs_SharesAvailableForGrantWarrantsOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
3,489,250wkhs_SharesAvailableForGrantWarrantsOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
| Shares Available For Grant, Additional stock reserved | ||
| Shares Available For Grant, Granted | ||
| Shares Available For Grant, Exercised | ||
| Shares Available For Grant, Forfeited | ||
| Shares Available For Grant Warrants Expired | ||
| Shares Available For Grant, Outstanding, Ending Balance |
3,489,250wkhs_SharesAvailableForGrantWarrantsOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
3,489,250wkhs_SharesAvailableForGrantWarrantsOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
| Warrants Number Of Shares [Roll Forward] | ||
| Number of Shares, Outstanding, Beginning Balance |
3,389,250us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
3,389,250us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
| Number of Shares, Additional stock reserved | ||
| Number of Shares, Granted | ||
| Number of Shares, Exercised | ||
| Number of Shares, Forfeited | ||
| Number of Shares, Expired | ||
| Number of Shares, Outstanding, Ending Balance |
3,389,250us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
3,389,250us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
| Weighted Average Exercise Price Per Share [Roll Forward] | ||
| Weighted Average Exercise Price per Share, Beginning Balance |
$ 1.78wkhs_WarrantsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
$ 1.78wkhs_WarrantsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
| Weighted Average Exercise Price per Share, Additional stock reserved | ||
| Weighted Average Exercise Price per Share, Granted | ||
| Weighted Average Exercise Price per Share, Exercised | ||
| Weighted Average Exercise Price per Share, Forfeited | ||
| Weighted Average Exercise Price per Share, Expired | ||
| Weighted Average Exercise Price per Share, Outstanding, Ending Balance |
$ 1.78wkhs_WarrantsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
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| Weighted Average Grant Fair Value Per Share [Roll Forward] | ||
| Weighted Average Grant Date Fair Value per Share, Outstanding, Beginning Balance |
$ 0.09wkhs_WarrantsOutstandingWeightedAverageGrantFairValuePerShare / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
$ 0.09wkhs_WarrantsOutstandingWeightedAverageGrantFairValuePerShare / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
| Weighted Average Grant Date Fair Value per Share, Granted | ||
| Weighted Average Grant Date Fair Value per Share, Exercised | ||
| 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 |
$ 0.09wkhs_WarrantsOutstandingWeightedAverageGrantFairValuePerShare / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / us-gaap_TitleOfIndividualAxis = wkhs_DirectorsAndOfficersMember |
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| Weighted Average Remaining Exercise Term [Roll Forward] | ||
| Weighted Average Remaining Exercise Term in Months, Beginning Balance | 9 months | 22 months |
| Weighted Average Remaining Exercise Term in Months, Ending Balance | 9 months |
| X | ||||||||||
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- Definition
Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate amount of each class of warrants or rights additional stock reserved. No definition available.
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| X | ||||||||||
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- Definition
Aggregate amount of each class of warrants or rights exercised. No definition available.
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| X | ||||||||||
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- Definition
Aggregate amount of each class of warrants or rights expired. No definition available.
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| X | ||||||||||
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- Definition
Aggregate amount of each class of warrants or rights forfeited. No definition available.
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| X | ||||||||||
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- Definition
Aggregate amount of each class of warrants or rights granted. No definition available.
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| X | ||||||||||
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- Definition
Shares available for grant additional stock reserved. No definition available.
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| X | ||||||||||
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- Definition
Shares available for grant warrants exercised. No definition available.
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| X | ||||||||||
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- Definition
Shares available for grant warrants expired. No definition available.
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| X | ||||||||||
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- Definition
Shares available for grant warrants forfeited. No definition available.
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| X | ||||||||||
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- Definition
Shares available for grant warrants granted. No definition available.
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| X | ||||||||||
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- Definition
Shares available for grant warrants outanding. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price exercised per share. No definition available.
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| X | ||||||||||
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- Definition
Weighted average grant fair value per share exercised. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price expired exercised per share. No definition available.
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| X | ||||||||||
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- Definition
Weighted average grant fair value per share expired. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price forfeited exercised per share. No definition available.
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| X | ||||||||||
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- Definition
Weighted average grant fair value per share forfeited. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price granted per share. No definition available.
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| X | ||||||||||
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- Definition
Weighted average grant fair value per share granted. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Weighted average price per share. No definition available.
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| X | ||||||||||
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- Definition
Weighted average grant fair value per share. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price shares available for grant per share. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Weighted average remaining contractual exercise term. No definition available.
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| X | ||||||||||
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- Definition
Weighted average remaining exercise term warrant one. No definition available.
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