Note 18 - Subsequent Events (Details Textual)		3 Months Ended
	May 01, 2024 USD ($) $ / shares	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)
Subsequent Event [Line Items]
Cash consideration		$ 0	$ 719
Avidian Gold Corp. [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Total equity value	$ 2,000,000
Stock purchase agreement date	May 01, 2024
Initial consideration	$ 2,400,000
Contingent payment	$ 1,000,000
Percentage of Ownership Purchase	100.00%
Cash consideration	$ 400,000
Initial purchase price	2,400,000
Deferred purchase price	$ 1,000,000
Period for additional purchase price	120 months
Third party transaction amount capped per property	$ 500,000
Percentage of consideration received for third party transaction	20.00%
Termination fee	$ 175,000
Avidian Gold Corp. [Member] | Deposit [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Cash consideration	50,000
Avidian Gold Corp. [Member] | Due on Closing Date [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Cash consideration	150,000
Avidian Gold Corp. [Member] | Due on or Before the 6-month Anniversary | Subsequent Event [Member]
Subsequent Event [Line Items]
Cash consideration	$ 200,000
HighGold Acquisition [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Outstanding equity interests acquired	100.00%
Agreement date	May 01, 2024
Total consideration per share | $ / shares	$ 0.4
Total equity value	$ 37,000,000
HighGold Acquisition [Member] | Common Stock [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Exchange ratio	0.019
HighGold Acquisition [Member] | Contango Mining Canada Inc. [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Shareholders ownership percentage in combined company	15.00%
HighGold Acquisition [Member] | Contango Shareholders [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Shareholders ownership percentage	85.00%