CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT) - USD ($)	Total	Series E Preferred Stock [Member]	Series F Preferred Stock [Member]	Series G Preferred Stock [Member]	Series F1 Preferred Stock [Member]	Series G1 Preferred Stock [Member]	Series G And G1 Preferred Stock [Member]	Series F And F1 Preferred Stock [Member]	Series H Preferred Stock [Member]	Series H-1 Preferred Convertible Stock [Member]	Series F-1 And G-1 Convertible Stock [Member]	Series H-1 Preferred Stock [Member]	Preferred Stock [Member]	Preferred Stock [Member] Series E Preferred Stock [Member]	Preferred Stock [Member] Series F Preferred Stock [Member]	Preferred Stock [Member] Series G Preferred Stock [Member]	Preferred Stock [Member] Series F1 Preferred Stock [Member]	Preferred Stock [Member] Series G1 Preferred Stock [Member]	Preferred Stock [Member] Series G And G1 Preferred Stock [Member]	Preferred Stock [Member] Series F And F1 Preferred Stock [Member]	Preferred Stock [Member] Series H Preferred Stock [Member]	Preferred Stock [Member] Series H-1 Preferred Convertible Stock [Member]	Preferred Stock [Member] Series F-1 And G-1 Convertible Stock [Member]	Preferred Stock [Member] Series H-1 Preferred Stock [Member]	Common Stock [Member]	Common Stock [Member] Series E Preferred Stock [Member]	Common Stock [Member] Series F Preferred Stock [Member]	Common Stock [Member] Series G Preferred Stock [Member]	Common Stock [Member] Series F1 Preferred Stock [Member]	Common Stock [Member] Series G1 Preferred Stock [Member]	Common Stock [Member] Series G And G1 Preferred Stock [Member]	Common Stock [Member] Series F And F1 Preferred Stock [Member]	Common Stock [Member] Series H Preferred Stock [Member]	Common Stock [Member] Series H-1 Preferred Convertible Stock [Member]	Common Stock [Member] Series F-1 And G-1 Convertible Stock [Member]	Common Stock [Member] Series H-1 Preferred Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Series E Preferred Stock [Member]	Additional Paid-in Capital [Member] Series F Preferred Stock [Member]	Additional Paid-in Capital [Member] Series G Preferred Stock [Member]	Additional Paid-in Capital [Member] Series F1 Preferred Stock [Member]	Additional Paid-in Capital [Member] Series G1 Preferred Stock [Member]	Additional Paid-in Capital [Member] Series G And G1 Preferred Stock [Member]	Additional Paid-in Capital [Member] Series F And F1 Preferred Stock [Member]	Additional Paid-in Capital [Member] Series H Preferred Stock [Member]	Additional Paid-in Capital [Member] Series H-1 Preferred Convertible Stock [Member]	Additional Paid-in Capital [Member] Series F-1 And G-1 Convertible Stock [Member]	Additional Paid-in Capital [Member] Series H-1 Preferred Stock [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member] Series E Preferred Stock [Member]	Accumulated Deficit [Member] Series F Preferred Stock [Member]	Accumulated Deficit [Member] Series G Preferred Stock [Member]	Accumulated Deficit [Member] Series F1 Preferred Stock [Member]	Accumulated Deficit [Member] Series G1 Preferred Stock [Member]	Accumulated Deficit [Member] Series G And G1 Preferred Stock [Member]	Accumulated Deficit [Member] Series F And F1 Preferred Stock [Member]	Accumulated Deficit [Member] Series H Preferred Stock [Member]	Accumulated Deficit [Member] Series H-1 Preferred Convertible Stock [Member]	Accumulated Deficit [Member] Series F-1 And G-1 Convertible Stock [Member]	Accumulated Deficit [Member] Series H-1 Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series E Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series F Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series G Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series F1 Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series G1 Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series G And G1 Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series F And F1 Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series H Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series H-1 Preferred Convertible Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series F-1 And G-1 Convertible Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Series H-1 Preferred Stock [Member]	WPCS Equity (Deficit) [Member]	WPCS Equity (Deficit) [Member] Series E Preferred Stock [Member]	WPCS Equity (Deficit) [Member] Series F Preferred Stock [Member]	WPCS Equity (Deficit) [Member] Series G Preferred Stock [Member]	WPCS Equity (Deficit) [Member] Series F1 Preferred Stock [Member]	WPCS Equity (Deficit) [Member] Series G1 Preferred Stock [Member]	WPCS Equity (Deficit) [Member] Series G And G1 Preferred Stock [Member]	WPCS Equity (Deficit) [Member] Series F And F1 Preferred Stock [Member]	WPCS Equity (Deficit) [Member] Series H Preferred Stock [Member]	WPCS Equity (Deficit) [Member] Series H-1 Preferred Convertible Stock [Member]	WPCS Equity (Deficit) [Member] Series F-1 And G-1 Convertible Stock [Member]	WPCS Equity (Deficit) [Member] Series H-1 Preferred Stock [Member]	Non-Controlling Interest [Member]	Non-Controlling Interest [Member] Series E Preferred Stock [Member]	Non-Controlling Interest [Member] Series F Preferred Stock [Member]	Non-Controlling Interest [Member] Series G Preferred Stock [Member]	Non-Controlling Interest [Member] Series F1 Preferred Stock [Member]	Non-Controlling Interest [Member] Series G1 Preferred Stock [Member]	Non-Controlling Interest [Member] Series G And G1 Preferred Stock [Member]	Non-Controlling Interest [Member] Series F And F1 Preferred Stock [Member]	Non-Controlling Interest [Member] Series H Preferred Stock [Member]	Non-Controlling Interest [Member] Series H-1 Preferred Convertible Stock [Member]	Non-Controlling Interest [Member] Series F-1 And G-1 Convertible Stock [Member]	Non-Controlling Interest [Member] Series H-1 Preferred Stock [Member]
Balance at Apr. 30, 2014	$ 5,967,350												$ 2,438,000												$ 63												$ 66,673,434												$ (65,222,355)												$ 1,232,003												$ 5,121,145												$ 846,205
Balance (in shares) at Apr. 30, 2014													2,438												632,417
Dividend declared on preferred stock	(2,508,518)	$ (74,487)					$ (233,288)	$ (577,789)						$ 0					$ 0	$ 0						$ 0					$ 0	$ 0						$ 0					$ 0	$ 0						$ (74,487)					$ (233,288)	$ (577,789)						$ 0					$ 0	$ 0						$ (74,487)					$ (233,288)	$ (577,789)						$ 0					$ 0	$ 0
Make-whole amount on conversion of preferred F-1 and G-1 shares	(1,622,954)												$ 0												$ 0												0												(1,622,954)												0												(1,622,954)												0
Conversion of a portion of the dividends payable related to Series preferred stock	1,622,954				$ 133,532								$ 0				$ 0								$ 7				$ 1								1,622,947				$ 133,531								0				$ 0								0				$ 0								1,622,954				$ 133,532								0				$ 0
Conversion of a portion of the dividends payable related to Series preferred stock (in Shares)													0				0								68,985				10,854
Conversion of Series E preferred stock to promissory notes (in shares)														(2,438)												0
Conversion of Series preferred stock to common stock					0	$ 0											$ (1,669,915)	$ (110,035)											$ 25	$ 2											1,669,890	$ 110,033											0	$ 0											0	$ 0											0	$ 0											0	$ 0
Conversion of Series preferred stock to common stock (in shares)																	(5,533)	(314)											251,500	17,512
Section 16 Settlement on cancellation of Series F-1 preferred stock				$ 731,706		182,576										$ 731,706		$ 182,576										$ 0		$ 0										$ 0		0										$ 0		0										$ 0		0										$ 731,706		182,576										$ 0		0
Section 16 Settlement on cancellation of Series F-1 preferred stock (in shares)																	(190)	(526)											0	0
Conversion of convertible note to Series preferred stock			$ 1,589,933		3,430,067	1,207,947									$ 1,589,933		$ 3,430,067	$ 1,207,947									$ 0		$ 0	$ 0									$ 0		0	0									$ 0		0	0									$ 0		0	0									$ 1,589,933		3,430,067	1,207,947									$ 0		0	0
Conversion of convertible note to Series preferred stock (in shares)															5,268		11,365	3,447									0		0	0
Conversion of Series E preferred stock to promissory notes		$ (2,438,000)					(110,035)	(1,669,915)	$ 0			$ 0		$ (2,438,000)												$ 0												$ 0												$ 0												$ 0												$ (2,438,000)												$ 0
Number of shares, Expiration					(57,344)	(184,238)											$ (57,344)	$ (184,238)											$ 0	$ 0											0	0											0	0											0	0											(57,344)	(184,238)											0	0
Stock based compensation	170,562												$ 0												$ 0												170,562												0												0												170,562												0
Fractional Shares Issued on reverse split	0												$ 0												$ 0												0												0												0												0												0
Fractional Shares Issued on reverse split (in shares)													0												1,392
Conversion of warrants to preferred stock (in shares)																2,088		521										0		0
Reclassification adjustments of net loss attributable to noncontrolling interest on sale of China operations	0
Other comprehensive loss	(23,472)												$ 0												$ 0												0												0												(15,561)												(15,561)												(1,079)
Reclassification adjustments of other comprehensive loss on the sale	(866,719)												0												0												0												0												(866,719)												(866,719)												0
Net Income (loss) attributable to noncontrolling interest	(284,210)												0												0												0												0												0												0												(284,211)
Net loss attributable to WPCS	(8,820,021)												0												0												0												(8,820,021)												0												(8,820,021)												0
Balance at Apr. 30, 2015	(139,064)												$ 5,120,697												$ 98												70,380,397												(76,550,894)												349,723												(699,979)												560,915
Balance (in shares) at Apr. 30, 2015													16,126												982,660
Issuance of Series H-1 preferred stock and warrants for cash												1,575,000												$ 1,575,000												$ 0												$ 0												$ 0												$ 0												$ 1,575,000												$ 0
Issuance of Series H-1 preferred stock and warrants for cash (in shares)																								8,532												0
Issuance of warrants with Series H-1 preferred stock												0												$ (841,405)												$ 0												$ 841,405												$ 0												$ 0												$ 0												$ 0
Beneficial conversion feature of Series H-1 convertible preferred stock										$ 0												$ (703,770)												$ 0												$ 703,770												$ 0												$ 0												$ 0												$ 0
Deemed dividends related to immediate accretion of beneficial conversion feature of Series H-1 convertible preferred stock										0												703,770												0												0												(703,770)												0												0												0
Deemed dividend on conversion of Series H-1 convertible preferred stock to common stock										0												40,729												0												0												(40,729)												0												0												0
Dividend declared on preferred stock	(4,742,768)						(126,198)	(159,215)											$ 0	$ 0											$ 0	$ 0											$ 0	$ 0											$ (126,198)	$ (159,215)											$ 0	$ 0											$ (126,198)	$ (159,215)											$ 0	$ 0
Make-whole amount on conversion of preferred F-1 and G-1 shares											$ (4,457,355)												$ 0												$ 0												$ 0												$ (4,457,355)												$ 0												$ (4,457,355)												$ 0
Conversion of a portion of the dividends payable related to Series preferred stock	4,457,356		313,186	129,656	311,791	208,325							$ 0		$ 0	$ 0	$ 0	$ 0							$ 21		$ 1	$ 1	$ 1	$ 1							4,457,335		313,185	129,655	311,790	208,324							0		0	0	0	0							0		0	0	0	0							4,457,356		313,186	129,656	311,791	208,325							0		0	0	0	0
Conversion of a portion of the dividends payable related to Series preferred stock (in Shares)													0		0	0	0	0							204,865		13,959	7,022	14,291	11,154
Conversion of Series preferred stock to common stock			$ 0	$ 0	$ 0	$ 0			0	$ 0					$ (1,589,933)	$ (731,706)	$ (1,702,808)	$ (1,096,250)			$ (892,738)	$ (75,000)					$ 24	$ 12	$ 26	$ 17			$ 58	$ 4					$ 1,589,909	$ 731,694	$ 1,702,782	$ 1,096,233			$ 892,680	$ 74,996					$ 0	$ 0	$ 0	$ 0			$ 0	$ 0					$ 0	$ 0	$ 0	$ 0			$ 0	$ 0					$ 0	$ 0	$ 0	$ 0			$ 0	$ 0					$ 0	$ 0	$ 0	$ 0			$ 0	$ 0
Conversion of Series preferred stock to common stock (in shares)													5,797		(5,268)	(2,088)	(5,642)	(3,128)			(5,797)	(413)			579,700		239,454	116,453	256,456	174,457			579,700	41,300
Conversion of convertible note to Series preferred stock									1,299,000												$ 1,299,000												$ 0												$ 0												$ 0												$ 0												$ 1,299,000												$ 0
Conversion of convertible note to Series preferred stock (in shares)																					8,435												0
Conversion of Series E preferred stock to promissory notes							$ (1,827,956)	$ (3,292,741)	$ (892,738)			$ (75,000)
Stock based compensation	2,506,239												$ 0												$ 5												2,506,234												0												0												2,506,239												0
Fractional Shares Issued on reverse split	0												$ 0												$ 0												0												0												0												0												0
Fractional Shares Issued on reverse split (in shares)													0												1,315
Reclassification adjustments of other comprehensive loss on sale of China operations	(349,723)												$ 0												$ 0												0												0												(349,723)												(349,723)												0
Reclassification adjustments of net loss attributable to noncontrolling interest on sale of China operations	(560,915)												0												0												0												0												0												0												(560,915)
Other comprehensive loss	349,723
Net Income (loss) attributable to noncontrolling interest	16,505
Net loss attributable to WPCS	(2,782,779)												$ 0												$ 0												0												(2,782,779)												0												(2,782,779)												0
Stock based compensation (in shares)													0												47,969
Balance at Apr. 30, 2016	$ 2,225,304												$ 1,105,586												$ 269												$ 85,940,389												$ (84,820,940)												$ 0												$ 2,225,304												$ 0
Balance (in shares) at Apr. 30, 2016													10,757												2,691,055