Statements of Stockholders' Equity (Deficit) (An Exploration Stage Company) (Parenthetical)	6 Months Ended	12 Months Ended
Apr. 30, 2012	Oct. 31, 2011
Amortization under 2010 equity incentive plan, options	3,250,000	3,250,000

The number of stock options included in the periodic charge against earnings to amortize the fair value of stock options that were granted.

No definition available.

Name:	aurm_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognitionNumberOfOptions
Namespace Prefix:	aurm_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration