Quarterly report pursuant to Section 13 or 15(d)

Lease Obligations (Details Textual)

v2.4.1.9
Lease Obligations (Details Textual) (USD $)
3 Months Ended 97 Months Ended 0 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Oct. 01, 2011
Property, Plant and Equipment [Line Items]        
Rent expenses $ 39,000us-gaap_OperatingLeasesRentExpenseNet $ 37,000us-gaap_OperatingLeasesRentExpenseNet $ 518,000us-gaap_OperatingLeasesRentExpenseNet  
Operating Facilities [Member]        
Property, Plant and Equipment [Line Items]        
Lease expiration date       Sep. 30, 2018
Future minimum monthly lease payments       12,598wkhs_OperatingLeasesFutureMinimumMonthlyPaymentsDue
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= wkhs_OperatingFacilitiesMember
Lease payments increased for each year       3.00%wkhs_LeasePaymentsIncreasedForEachYear
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= wkhs_OperatingFacilitiesMember
Security deposit       $ 12,275us-gaap_SecurityDeposit
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= wkhs_OperatingFacilitiesMember