Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details Textual)

v2.4.1.9
Long-Term Debt (Details Textual) (USD $)
12 Months Ended 3 Months Ended
Dec. 31, 2013
Mar. 31, 2015
Employee
Debt Instrument [Line Items]    
Payments to escrow account $ 22,900wkhs_FuturePaymentsToEscrowAccount  
Incentive payment to 30 employees by October 31, 2013 [Member]    
Debt Instrument [Line Items]    
Number of employees   30wkhs_NumberOfEmployees
/ wkhs_IncentivePaymentToEmployeeAxis
= wkhs_IncentivePaymentTo30EmployeesBy2013October31Member
Payroll of employees   135,000us-gaap_EmployeeRelatedLiabilitiesCurrent
/ wkhs_IncentivePaymentToEmployeeAxis
= wkhs_IncentivePaymentTo30EmployeesBy2013October31Member
Incentive payment to 40 employee by July 31, 2014 [Member]    
Debt Instrument [Line Items]    
Number of employees   40wkhs_NumberOfEmployees
/ wkhs_IncentivePaymentToEmployeeAxis
= wkhs_IncentivePaymentTo40EmployeeBy2014July31Member
Payroll of employees   175,000us-gaap_EmployeeRelatedLiabilitiesCurrent
/ wkhs_IncentivePaymentToEmployeeAxis
= wkhs_IncentivePaymentTo40EmployeeBy2014July31Member
Incentive payment to 40 employee thereafter [Member]    
Debt Instrument [Line Items]    
Number of employees   40wkhs_NumberOfEmployees
/ wkhs_IncentivePaymentToEmployeeAxis
= wkhs_IncentivePaymentTo40EmployeeThereafterOf2014July31Member
Payroll of employees   $ 175,000us-gaap_EmployeeRelatedLiabilitiesCurrent
/ wkhs_IncentivePaymentToEmployeeAxis
= wkhs_IncentivePaymentTo40EmployeeThereafterOf2014July31Member