Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Prinicples (Details Textual 2)

v2.4.1.9
Summary of Significant Accounting Prinicples (Details Textual 2)
Mar. 31, 2013
acre
sqft
INF
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Number of dealers 440wkhs_NumberOfDealers
Area of facilities covered (in sq ft) 250,000wkhs_AreaOfFacilitiesCovered
Area of land (in acres) 48us-gaap_AreaOfLand