Note 9 - Noncontrolling Interest In Joint Venture (Details Textual) - USD ($)	Sep. 26, 2012	Apr. 27, 2011	Jun. 30, 2017
Proceeds from Working Capital Agreement		$ 5,000,000
Mego Gold LLC [Member]
Sale of Stock, Percentage of Ownership before Transaction		100.00%
Getik Mining Company LLC [Member]
Sale of Stock, Percentage of Ownership before Transaction	100.00%
Global Gold Consolidated Resources Limited [Member]
Equity Method Investment, Ownership Percentage			51.00%