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OTHER DEBT (Details Textual) (USD $)
9 Months Ended
Jan. 31, 2015
Apr. 30, 2014
Jan. 28, 2014
Debt Conversion [Line Items]      
Short-term Debt, Weighted Average Interest Rate 7.38%us-gaap_ShortTermDebtWeightedAverageInterestRate    
Due to Related Parties, Current $ 795,732us-gaap_DueToRelatedPartiesCurrent $ 778,573us-gaap_DueToRelatedPartiesCurrent  
Short-Term Bank Loans and Notes Payable 3,199,760us-gaap_ShortTermBankLoansAndNotesPayable 3,195,000us-gaap_ShortTermBankLoansAndNotesPayable  
Convertible Notes Payable, Current 1,703,000us-gaap_ConvertibleNotesPayableCurrent 0us-gaap_ConvertibleNotesPayableCurrent  
Short Term Promissory Notes [Member]      
Debt Conversion [Line Items]      
Proceeds from Other Short-term Debt 2,438,000us-gaap_ProceedsFromOtherShortTermDebt
/ us-gaap_DebtInstrumentAxis
= wpcs_ShortTermPromissoryNotesMember
   
Debt Instrument, Repurchase Amount     735,000us-gaap_DebtInstrumentRepurchaseAmount
/ us-gaap_DebtInstrumentAxis
= wpcs_ShortTermPromissoryNotesMember
Convertible Notes Payable, Current $ 1,703,000us-gaap_ConvertibleNotesPayableCurrent
/ us-gaap_DebtInstrumentAxis
= wpcs_ShortTermPromissoryNotesMember