Note 3 - Property and Equipment (Details Textual) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2016	Jun. 30, 2015
Impairment of Long-Lived Assets Held-for-use					$ 1,684,562
Depreciation, Total	$ 436	$ 502	$ 1,308	$ 1,507
Property, Plant and Equipment of PA1 [Member]
Impairment of Long-Lived Assets Held-for-use			$ 0		$ 1,684,562	$ 3,750,000