XML 40 R11.htm IDEA: XBRL DOCUMENT v2.4.1.9

Prepaid Expenses	9 Months Ended
	Mar. 31, 2015
Prepaid Expense, Current [Abstract]
Prepaid Expenses	Prepaid Expenses The Company has prepaid expenses of $141,096 and $98,906 as of March 31, 2015 and June 30, 2014, respectively. Prepaid expenses relate to prepaid insurance costs, XBRL filing costs, claim rentals and certain geological consulting services and exploration activities.

X

- Definition

Prepaid Expenses [Text Block]

+ References

No definition available.

+ Details

Name:	ctgo_PrepaidExpensesTextBlock
Namespace Prefix:	ctgo_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_PrepaidExpenseCurrentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration