Derivative Liabilities - Summary of Fair Value Measurements Using Significant Unobservable Inputs (Level 3) (Details) - Level 3 [Member]	3 Months Ended
Jul. 31, 2018 USD ($)
Balance - April 30, 2018	$ 30,488,655
Addition of new derivatives recognized as debt discounts	325,000
Other addition of new derivatives	634,536
Reclassification of derivatives due to tainted instruments	226,949
Gain on change in fair value of the derivative	(608,699)
Balance - July 31, 2018	$ 31,066,441

Amount of increase (decrease) of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

Name:	us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration