Schedule of Fair Value of Separate Accounts by Major Category of Investment (Details) - USD ($)	9 Months Ended	12 Months Ended
	Jan. 31, 2017	Apr. 30, 2016
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 1	$ 0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 2	0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 3	0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 4	0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 5	0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 6	0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 7	0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 8	$ 0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 1		$ 216,648
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 2		0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 3		216,648
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 4		0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 5		216,648
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 6		0
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 7		216,648
Description Of Business, History And Summary Of Significant Policies Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment 8		$ 0

ROYAL MINES & MINERALS CORP 10-Q