Note 15 - Equity Incentive Plans (Tables)

9 Months Ended

Mar. 31, 2024

Notes Tables

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

						Weighted
						Average
				Weighted		Remaining
	Number of			Average		Contractual
	Options			Exercise Price		Life in Years
Outstanding June 30, 2023		52,762		$	18.37		9.06
Granted		113,500		$	1.74		9.38
Forfeited/cancelled		(18,859	)	$	3.30		—
Expired		(702	)	$	186.18		—
Outstanding at March 31, 2024		146,701		$	6.32		9.06
Exercisable at March 31, 2024		21,817		$	29.80		8.15

Nonvested Restricted Stock Shares Activity [Table Text Block]

				Weighted
				Average Grant
	Number of			Date Fair
	Shares			Value
Unvested at June 30, 2023		38,075		$	142.20
Granted		12,500		$	1.77
Vested		(19,892	)	$	114.09
Forfeited/cancelled		(457	)	$	136.80
Unvested at March 31, 2024		30,226		$	102.70

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

				Weighted
				Average Grant
	Number of			Date Fair
	Shares			Value
Unvested at June 30, 2023		4,963		$	25.62
Vested		(1,688	)	$	24.28
Forfeited		(939	)	$	31.60
Unvested at March 31, 2024		2,336		$	24.17

Share-Based Payment Arrangement, Cost by Plan [Table Text Block]

	Three Months Ended				Nine Months Ended
	March 31,				March 31,
	2024		2023		2024		2023
	(in thousands)
Cost of sales	$	—	$	4	$	1	$	12
Research and development		2		2		5		25
Selling and marketing		—		3		—		9
General and administrative		809		893		2,555		5,100
Total stock-based compensation expense	$	811	$	902	$	2,561	$	5,146