Note 6 - Income Taxes - Income Tax Provision (Details) - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	[1]
Federal	$ (13,277)	$ 414
State	25	25
Deferred	(13,251)	3,041,405
Total income tax (benefit) provision	$ (26,503)	$ 3,041,844	[2],[3]

[1] As adjusted for the retrospective adoption of ASC 606

[2] As adjusted for the retrospective adoption of ASC 606

[3] As adjusted for the retrospective adoption of ASC 606