Consolidated Balance Sheets - USD ($)	Jun. 30, 2021	Jun. 30, 2020
CURRENT ASSETS:
Cash	$ 35,220,588	$ 3,011,918
Prepaid expenses and other	515,635	72,244
Income tax receivable	198,126
Total current assets	35,934,349	3,084,162
LONG-TERM ASSETS:
Investment in Peak Gold, LLC (NOTE 8)
Property, plant, & equipment	36,531
Total long-term assets	36,531
TOTAL ASSETS	35,970,880	3,084,162
CURRENT LIABILITIES:
Accounts payable	26,268	83,158
Accrued liabilities	195,837	1,006,237
Total current liabilities	222,105	1,089,395
NON-CURRENT LIABILITIES:
Advance royalty reimbursement	1,200,000
Total non-current liabilities	1,200,000
TOTAL LIABILITIES	1,422,105	1,089,395
COMMITMENTS AND CONTINGENCIES (NOTE 10)
SHAREHOLDERS’ EQUITY:
Preferred Stock, 15,000,000 shares authorized
Common Stock, $0.01 par value, 45,000,000 shares authorized; 6,675,746 shares issued and outstanding as of June 30, 2021; 6,590,113 shares issued and 6,557,239 outstanding at June 30, 2020	66,757	65,901
Additional paid-in capital	69,509,606	61,302,249
Treasury stock at cost (0 at June 30, 2021; and 32,874 shares at June 30, 2020)		(476,672)
Accumulated deficit	(35,027,588)	(58,896,711)
SHAREHOLDERS’ EQUITY	34,548,775	1,994,767
TOTAL LIABILITIES AND MEMBERS’ EQUITY	$ 35,970,880	$ 3,084,162

The amount of advance royalty reimbursement classified as noncurrent.

No definition available.

Name:	ctgo_AdvanceRoyaltyReimbursementNoncurrent
Namespace Prefix:	ctgo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).