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SENIOR SECURED CONVERTIBLE NOTES (Details Textual) (USD $)
 3 Months Ended 9 Months Ended
Jan. 31, 2015
Jan. 31, 2015
Short-term Debt [Line Items]    
Debt Conversion, Original Debt, Amount $ 314,000us-gaap_DebtConversionOriginalDebtAmount1 $ 459,000us-gaap_DebtConversionOriginalDebtAmount1
Convertible Notes Payable [Member]    
Short-term Debt [Line Items]    
Debt Conversion, Original Debt, Amount   458,930us-gaap_DebtConversionOriginalDebtAmount1
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Convertible Notes Returned $ 439,408wpcs_ConvertibleNotesReturned
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember		 $ 439,408wpcs_ConvertibleNotesReturned
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember