BASIC AND DILUTED NET LOSS PER COMMON SHARE (Details) - USD ($)	3 Months Ended		6 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2015	Oct. 31, 2014
Numerator:
Loss from continuing operations attributable to WPCS common shareholders	$ (2,823,466)	$ (1,998,369)	$ (7,030,226)	$ (4,720,356)
Income (loss) from discontinued operations, basic and diluted	837,720	(1,887,384)	878,981	(1,526,602)
Net loss attributable to WPCS common shareholders, basic and diluted	$ (1,985,746)	$ (3,832,638)	$ (6,167,750)	$ (6,144,823)
Denominator:
Basic and diluted weighted average shares outstanding	2,415,113	632,417	1,942,681	632,417
Basic and diluted loss from continuing operations per common share	$ (1.17)	$ (3.16)	$ (3.62)	$ (7.46)
Basic and diluted income (loss) from discontinued operations per common share	0.35	(2.91)	0.44	(2.26)
Basic and diluted loss per common share	$ (0.82)	$ (6.06)	$ (3.17)	$ (9.72)