Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation (Details Textual)

v2.4.1.9
Stock Based Compensation (Details Textual) (USD $)
12 Months Ended 3 Months Ended 97 Months Ended
Dec. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]        
Stock based compensation $ 68,365us-gaap_AllocatedShareBasedCompensationExpense      
Stock Options [Member] | Incentive Stock Plan 2013, 2012, 2011 and 2010 (the plans) | Directors, officers and employees [Member]        
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]        
Number of shares authorized   11,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= wkhs_IncentiveStockPlans2010To2013Member
/ us-gaap_TitleOfIndividualAxis
= wkhs_DirectorsOfficersAndEmployeesMember
  11,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= wkhs_IncentiveStockPlans2010To2013Member
/ us-gaap_TitleOfIndividualAxis
= wkhs_DirectorsOfficersAndEmployeesMember
Percentage of fair market value granted   110.00%wkhs_PercentageOfFairMarketValueGranted
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= wkhs_IncentiveStockPlans2010To2013Member
/ us-gaap_TitleOfIndividualAxis
= wkhs_DirectorsOfficersAndEmployeesMember
   
Percentage of fair market value non-qualified stock options granted   85.00%wkhs_PercentageOfMarketValueOfCommonStock
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= wkhs_IncentiveStockPlans2010To2013Member
/ us-gaap_TitleOfIndividualAxis
= wkhs_DirectorsOfficersAndEmployeesMember
   
Fair market value granted of stock options granted after one year   2 years    
Stock based compensation   78,234us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= wkhs_IncentiveStockPlans2010To2013Member
/ us-gaap_TitleOfIndividualAxis
= wkhs_DirectorsOfficersAndEmployeesMember
34,119us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= wkhs_IncentiveStockPlans2010To2013Member
/ us-gaap_TitleOfIndividualAxis
= wkhs_DirectorsOfficersAndEmployeesMember
2,441,530us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= wkhs_IncentiveStockPlans2010To2013Member
/ us-gaap_TitleOfIndividualAxis
= wkhs_DirectorsOfficersAndEmployeesMember
Unrecognized compensation expense   $ 1,050,448us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= wkhs_IncentiveStockPlans2010To2013Member
/ us-gaap_TitleOfIndividualAxis
= wkhs_DirectorsOfficersAndEmployeesMember
  $ 1,050,448us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= wkhs_IncentiveStockPlans2010To2013Member
/ us-gaap_TitleOfIndividualAxis
= wkhs_DirectorsOfficersAndEmployeesMember
Recognized period for non-vested warrants granted to consultants anticipated   37 months    
Stock Options [Member] | Incentive Stock Plan 2013, 2012, 2011 and 2010 (the plans) | Directors, officers and employees [Member] | Minimum [Member]        
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]        
Term of fair market value of options granted   3 years    
Stock Options [Member] | Incentive Stock Plan 2013, 2012, 2011 and 2010 (the plans) | Directors, officers and employees [Member] | Maximum [Member]        
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]        
Term of fair market value of options granted   5 years