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Equity Incentive Plans (Tables)

12 Months Ended

Jun. 30, 2023

Share-Based Payment Arrangement [Abstract]

Stock option activity

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​				​	​		Weighted
​	​	​	​	​	​	​	Average
​	​	​	​	Weighted		​	Remaining
​	​	Number of	​	Average		​	Contractual
​	​	Options	​	Exercise Price		​	Life in Years
Outstanding June 30, 2022		3,899	​	$	209.70		7.77
Granted		49,212	​	​	4.00
Forfeited/Cancelled		(172)	​	​	128.99
Expired		(177)	​	​	131.39
Outstanding at June 30, 2023		52,762	​	$	18.37		9.06
​	​	​	​	​	​	​	​
Exercisable at June 30, 2023		3,022	​	$	225.74		6.17

Stock options outstanding

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Weighted

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Average

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Remaining

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Weighted

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Contractual

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Range of

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Number of

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Average

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Life of

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Number of

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Weighted

Exercise

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Options

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Exercise

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Options

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Options

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Average

Prices

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Outstanding

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Price

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Outstanding

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Exercisable

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Exercise Price

$

4.00

49,212

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$

4.00

9.26

—

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$

—

$

123.16 - 290.00

3,550

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$

217.52

6.26

3,022

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$

225.74

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52,762

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$

18.37

9.06

3,022

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$

225.74

Restricted stock activity

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​	​	​	​	​	​
​	​	​	​	Weighted
​	​	​	​	Average Grant
​	​	Number of	​	Date Fair
​	​	Shares	​	Value
Unvested at June 30, 2022		80,373	​	$	148.91
Granted		6,825	​	​	3.79
Vested		(42,434)	​	​	126.98
Forfeited/Cancelled	​	(6,689)	​	​	135.66
Unvested at June 30, 2023		38,075	​	$	142.20

Restricted stock units activity

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​	​	​	​	Weighted
​	​	​	​	Average Grant
​	​	Number of	​	Date Fair
​	​	Shares	​	Value
Unvested at June 30, 2022		8,500	​	$	25.88
Vested		(3,537)	​	​	26.26
Unvested at June 30, 2023		4,963	​	$	25.62

Stock-based compensation expense

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​	​	​	​	​	​	​
​	​	Year Ended
​	​	June 30,
​	​	2023			2022
​	​	(In thousands)
Cost of sales	​	$	28	​	$	31
Research and development	​	​	30	​	​	536
Selling and marketing	​	​	23	​	​	24
General and Administrative	​		5,965	​		4,657
Total stock-based compensation expense	​	$	6,046	​	$	5,248

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Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

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