Document and Entity Information	3 Months Ended
	Jul. 31, 2016 shares
Document and Entity Information:
Entity Registrant Name	REDtone Asia Inc
Document Type	10-Q
Document Period End Date	Jul. 31, 2016
Amendment Flag	false
Entity Central Index Key	0001341319
Current Fiscal Year End Date	--04-30
Entity Common Stock, Shares Outstanding	282,315,356
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Trading Symbol	rtas