CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
	Apr. 30, 2012	Apr. 30, 2011
Income Statement [Abstract]
REVENUE	$ 92,423,686	$ 84,091,722
Cost of revenue	83,666,001	69,356,446
Selling, general and administrative expenses	19,962,272	21,276,902
Depreciation and amortization	2,258,080	2,223,376
Goodwill and intangible assets impairment	168,604	34,370,285
Change in fair value of acquisition-related contingent consideration	83,628	217,571
[CostsAndExpenses]	106,138,585	122,321,307
OPERATING LOSS	(13,714,899)	(38,229,585)
Interest expense	865,093	655,845
Interest income	(54,245)	(47,027)
Loss from continuing operations before income tax provision (benefit)	(14,525,747)	(38,838,403)
Income tax provision (benefit)	4,232,168	(6,437,430)
LOSS FROM CONTINUING OPERATIONS	(18,757,915)	(32,400,973)
Discontinued operations:
Income (loss) from operations of discontinued operations, net of tax of $0, ($313,948), ($188,819) and $56,934, respectively	(779,019)	(4,604,939)
Loss from disposal	(1,032,737)
(Loss) income from discontinued operations, net of tax	(1,811,756)	(4,604,939)
CONSOLIDATED NET LOSS	(20,569,671)	(37,005,912)
Net income attributable to noncontrolling interest	(21,840)	(174,491)
NET LOSS ATTRIBUTABLE TO WPCS	$ (20,547,831)	$ (36,831,421)
Basic and diluted net loss per common share attributable to WPCS:
Loss from continuing operations attributable to WPCS	$ (2.69)	$ (4.64)
(Loss) income from discontinued operations attributable to WPCS	$ (0.26)	$ (0.66)
Basic and diluted net loss per common share attributable to WPCS	$ (2.95)	$ (5.30)
Basic and diluted weighted average number of common shares outstanding	6,954,766	6,954,766