Note 3 - Property and Equipment (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Impairment of Long-Lived Assets Held-for-use			$ 1,684,562
Depreciation, Total	$ 1,744	$ 1,981
Property, Plant and Equipment, Net, Ending Balance	1,448	$ 3,192
Property, Plant and Equipment of PA1 [Member]
Impairment of Long-Lived Assets Held-for-use	$ 0		1,684,562	$ 3,750,000
Property, Plant and Equipment, Net, Ending Balance			$ 0