Note 11 - Stock-based Compensation (Tables)

9 Months Ended

Mar. 31, 2023

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

	Shares			Weighted Average Exercise Price
Outstanding at June 30, 2022		34,284		$	40.41
Granted		5,162			13.20
Exercised		—			—
Canceled or expired		(2,414	)		174.08
Outstanding at March 31, 2023		37,032		$	27.91

Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Range of exercise prices		Number Outstanding		Options Outstanding Weighted-Average Remaining Contractual Life (Years)		Weighted-Average Exercise Price		Number Exercisable		Options Exercisable Weighted-Average Exercise Price
$	13.20 - 19.20		34,361		9.10	$	18.30		—	$	—
$	55.50 - 84.90		431		5.51		62.22		431		62.22
$	159.00 - 175.50		2,240		4.11		168.82		2,240		168.82
$	13.20 - 175.50		37,032		9.00	$	27.91		2,671	$	151.62

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

	Shares		Weighted Average Grant Date Fair Value
Outstanding at June 30, 2022	75,873		$	39.00
Granted	2,150			11.83
Vested	(17,852	)		60.60
Canceled or expired	(55	)		60.60
Outstanding at March 31, 2023	60,116		$	31.52