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Equity Incentive Plans (Tables)
3 Months Ended
Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Stock option activity

    

    

    

    

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

 

112,000

1.73

 

  

Forfeited/Cancelled

 

(2,045)

4.78

 

  

Expired

 

(34)

158.09

 

  

Outstanding at September 30, 2023

 

162,683

$

6.91

 

9.55

Exercisable at September 30, 2023

 

3,019

$

227.16

 

5.97

Restricted stock activity

Weighted

Average Grant

Number of

Date Fair

Shares

Value

Unvested at June 30, 2023

 

38,075

$

142.20

Granted

 

12,500

1.77

Vested

 

(6,424)

137.95

Unvested at September 30, 2023

 

44,151

$

103.06

Restricted stock units activity

    

    

    

Weighted

Average Grant

Number of

Date Fair

Shares

Value

Unvested at June 30, 2023

 

4,963

$

25.62

Vested

 

(561)

24.28

Forfeited

(939)

31.60

Unvested at September 30, 2023

 

3,463

$

24.21

 

Stock-based compensation expense

Three Months Ended

September 30, 

    

2023

    

2022

(in thousands)

Cost of sales

$

$

5

Research and development

1

9

Selling and marketing

3

General and Administrative

 

929

 

1,160

Total stock-based compensation expense

$

930

$

1,177