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Equity Incentive Plan (Tables)

12 Months Ended

Jun. 30, 2021

Equity Incentive Plan

Significant assumptions used in valuing options/warrants issued

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​	​	​	​
​	​	June 30, 2021
Expected volatility	​	100.0	%
Expected term (years)	​	5.00	​
Risk-free interest rate	​	0.90	%
Dividend yield	​	0.00	%

Stock option activity

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​	​	​	​	​	​	​	​
​				​	​		Weighted
​	​	​	​	​	​	​	Average
​	​	​	​	Weighted		​	Remaining
​	​	Number of	​	Average		​	Contractual
​	​	Options	​	Exercise Price		​	Life in Years
Outstanding June 30, 2019		188	​	$	3,259.57		6.95
Granted		76,950	​	​	12.42
Exercised		(500)	​	​	9.70
Expired		(24)	​	​	3,280.00
Outstanding June 30, 2020		76,614	​	$	19.39		9.67
Granted		69,721	​	​	6.35
Forfeited/Cancelled		(33,380)	​	​	8.61
Expired		(3,367)	​	​	14.77
Outstanding at June 30, 2021		109,588	​	$	14.52		8.07
​	​	​	​	​	​	​	​
Exercisable at June 30, 2021		54,539	​	$	20.92		7.64

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

$

6.2 - 9.70

58,316

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$

6.41

8.33

16,970

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$

6.51

$

9.80 - 14.70

51,114

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$

13.75

8.08

37,411

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$

13.79

$

2,800.00 - 4,200.00

158

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$

3,255.70

4.80

158

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$

3,255.70

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109,588

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$

14.52

8.21

54,539

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$

20.92

Restricted stock activity

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​	​	​	​	​	​
​	​	​	​	Weighted
​	​	​	​	Average Grant
​	​	Number of	​	Date Fair
​	​	Shares	​	Value
Unvested at June 30, 2019		234,623	​	$	18.30
Granted		195,292	​	​	10.60
Vested		—	​	​	—
Forfeited		(11,461)	​	​	17.90
Unvested at June 30, 2020		418,454	​	$	14.69
Granted		1,697,416	​	​	6.52
Vested		(160,602)	​	​	11.75
Unvested at June 30, 2021		1,955,268	​	$	7.83

Restricted stock units activity

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​	​	​	​	​	​
​	​	​	​	Weighted
​	​	​	​	Average Grant
​	​	Number of	​	Date Fair
​	​	Shares	​	Value
Unvested at June 30, 2020		—	​	$	—
Granted	​	103,728	​	​	6.96
Vested		(9,962)	​	​	4.99
Forfeited	​	(15,448)	​	​	7.00
Unvested at June 30, 2021		78,318	​	$	7.20

Stock-based compensation expense

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​	​	​	​	​	​	​
​	​	Year Ended June 30,
​	​	2021			2020
​	​	(In thousands)
Cost of sales	​	$	16	​	$	—
Research and development	​	​	68	​	​	—
Selling and marketing	​	​	27	​	​	—
General and Administrative	​		3,463	​		1,079
Total stock-based compensation expense	​	$	3,574	​	$	1,079

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