INCOME TAXES (Details 3) - USD ($)	Apr. 30, 2015	Apr. 30, 2014
Deferred tax assets:
Allowance for doubtful accounts	$ 34,392	$ 55,140
Bonus and vacation accruals	79,274	667,992
Non-qualified stock options	144,972	76,850
Federal benefit for foreign tax credit	265,600	265,600
Accruals	0	57,045
Valuation allowance	(524,238)	(1,122,627)
Deferred tax assets-current	0	0
Intangible assets	0	39,232
Goodwill	0	35,638
Capital loss carryforward	3,884,389	949,973
Property and equipment	26,434	0
Net operating loss carryforward	12,262,334	11,346,435
Valuation allowance	(16,173,157)	(12,316,027)
Deferred tax assets-long term	0	55,251
Deferred tax liabilities:
Property and equipment	0	55,251
Deferred tax liabilities-long term	0	55,251
Net deferred tax assets (liabilities)	$ 0	$ 0