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STOCKHOLDERS' EQUITY (Details Textual)
 9 Months Ended
Jan. 31, 2015
Common Stock [Member]  
Stock Issued During Period, Shares, Conversion of Units 600,000us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
Series F1 Preferred Stock [Member]  
Preferred Stock, Shares Issued 11,175us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= wpcs_SeriesF1PreferredStockMember
Stock Issued During Period, Shares, Conversion of Units 600us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits
/ us-gaap_StatementClassOfStockAxis
= wpcs_SeriesF1PreferredStockMember
Series G1 Preferred Stock [Member]  
Preferred Stock, Shares Issued 3,447us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= wpcs_SeriesG1PreferredStockMember