Note 6 - Net Income (Loss) Per Share - Reconciliation of the Components of Basic and Diluted Net Loss Per Share (Details) - USD ($)	3 Months Ended						9 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Mar. 31, 2022	Mar. 31, 2021
Net loss attributable to common stock	$ (6,827,867)	$ (4,875,039)	$ (4,572,213)	$ (4,510,158)	$ (3,214,045)	$ 33,442,625	$ (16,275,119)	$ 25,718,422
Weighted Average Shares, basic (in shares)	6,743,528			6,153,334			6,725,079	6,261,102
Income Per Share, basic (in dollars per share)	$ (1.01)			$ (0.73)			$ (2.42)	$ 4.11
Weighted Average Shares, diluted (in shares)	6,743,528			6,153,334			6,725,079	6,261,102
Income Per Share, diluted (in dollars per share)	$ (1.01)			$ (0.73)			$ (2.42)	$ 4.11