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Related Party Transactions (Details) (USD $)	Mar. 31, 2015	Sep. 29, 2014
Related Party Transaction [Line Items]
Accrued Rent	11,000us-gaap_AccruedRentCurrentAndNoncurrent
JEX [Member]
Related Party Transaction [Line Items]
Overriding royalty interest	3.00%ctgo_OverridingRoyaltyInterest / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ctgo_JexMember
ALASKA | JEX [Member]
Related Party Transaction [Line Items]
Overriding royalty interest	2.00%ctgo_OverridingRoyaltyInterest / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ctgo_JexMember / us-gaap_StatementGeographicalAxis = stpr_AK	2.00%ctgo_OverridingRoyaltyInterest / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ctgo_JexMember / us-gaap_StatementGeographicalAxis = stpr_AK

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Overriding Royalty Interest

+ References

No definition available.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for contractual rent under lease arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph a

-Article 7

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