Stockholders' Equity (Tables)
|
6 Months Ended |
Dec. 31, 2021 |
|---|
| Class Of Stock [Line Items] |
|
| Schedule of Stock Option Expense |
|
|
|
Three months ended
December 31,
|
|
|
Six months ended
December 31,
|
|
|
|
|
2021
$
|
|
|
2020
$
|
|
|
2021
$
|
|
|
2020
$
|
|
|
Research and development
|
|
|
249
|
|
|
|
572
|
|
|
|
493
|
|
|
|
663
|
|
|
General and administrative
|
|
|
581
|
|
|
|
1,553
|
|
|
|
1,148
|
|
|
|
1,867
|
|
|
|
|
|
830
|
|
|
|
2,125
|
|
|
|
1,641
|
|
|
|
2,530
|
|
|
| Schedule of Unvested Stock Options |
|
|
|
Number of
Options
(in thousands)
|
|
|
Weighted
average
exercise
price
$
|
|
|
Unvested at June 30, 2021
|
|
|
3,860
|
|
|
|
1.60
|
|
|
Granted
|
|
|
3,954
|
|
|
|
0.99
|
|
|
Vested
|
|
|
(1,116
|
)
|
|
|
1.58
|
|
|
Forfeited
|
|
|
(239
|
)
|
|
|
1.70
|
|
|
Unvested at December 31, 2021
|
|
|
6,459
|
|
|
|
1.23
|
|
|
| Schedule of Warrants |
|
|
|
Number of
Warrants
(in thousands)
|
|
|
Weighted
average
exercise
price
$
|
|
|
Balance – June 30, 2021
|
|
|
6,974
|
|
|
|
3.34
|
|
|
Issuance of 2022 Investor Warrants
|
|
|
12,000
|
|
|
|
1.25
|
|
|
Issuance of PFW
|
|
|
4,800
|
|
|
|
0.001
|
|
|
Issuance of 2022 Agent Warrants
|
|
|
600
|
|
|
|
1.5625
|
|
|
Exercise of PFW
|
|
|
(4,800
|
)
|
|
|
0.001
|
|
|
Exercise of 2020 Investor Warrants
|
|
|
(69
|
)
|
|
|
1.00
|
|
|
Expiry of Adgero replacement warrants
|
|
|
(353
|
)
|
|
|
3.18
|
|
|
Balance – December 31, 2021
|
|
|
19,152
|
|
|
|
1.99
|
|
|
| Schedule of Changes in Outstanding Warrants |
|
Description of warrants
|
|
Number
(in thousands)
|
|
|
Exercise
price $
|
|
|
Expiry date
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2022 Investor warrants
|
|
|
12,000
|
|
|
|
1.25
|
|
|
March 28, 2025
|
|
2020 Investor warrants
|
|
|
3,264
|
|
|
|
1.00
|
|
|
August 16, 2024
|
|
2019 Investor warrants
|
|
|
760
|
|
|
|
3.10
|
|
|
June 5, 2024
|
|
2018 Investor warrants
|
|
|
280
|
|
|
|
12.50
|
|
|
September 22, 2022
|
|
2017 Investor warrants
|
|
|
208
|
|
|
|
35.00
|
|
|
April 19, 2022
|
|
NBTS Warrants
|
|
|
125
|
|
|
|
1.09
|
|
|
June 19, 2025
|
|
Warrants issued for services
|
|
|
6
|
|
|
|
17.80
|
|
|
January 25, 2023
|
|
Warrants issued for services
|
|
|
34
|
|
|
|
11.70
|
|
|
February 27, 2023
|
|
Warrants issued for services
|
|
|
14
|
|
|
|
9.00
|
|
|
September 15, 2023
|
|
Warrants issued for services
|
|
|
280
|
|
|
|
0.75
|
|
|
October 11, 2023
|
|
Warrants issued for services
|
|
|
125
|
|
|
|
0.64
|
|
|
November 18, 2023
|
|
Warrants issued for services
|
|
|
280
|
|
|
|
1.49
|
|
|
January 20, 2024
|
|
Warrants issued for services
|
|
|
50
|
|
|
|
1.49
|
|
|
September 22, 2023
|
|
Warrants issued for services
|
|
|
50
|
|
|
|
1.82
|
|
|
November 13, 2023
|
|
Warrants issued for services
|
|
|
100
|
|
|
|
1.47
|
|
|
January 20, 2024
|
|
Warrants issued for services
|
|
|
70
|
|
|
|
2.75
|
|
|
February 17, 2024
|
|
Warrants issued for services
|
|
|
50
|
|
|
|
2.38
|
|
|
February 25, 2024
|
|
2022 Agent warrants
|
|
|
600
|
|
|
|
1.56
|
|
|
March 28, 2025
|
|
2019 Agent warrants
|
|
|
47
|
|
|
|
3.88
|
|
|
June 3, 2024
|
|
2018 Agent warrants
|
|
|
40
|
|
|
|
12.50
|
|
|
September 20, 2022
|
|
2017 Agent warrants
|
|
|
14
|
|
|
|
40.60
|
|
|
April 12, 2022
|
|
Adgero Warrants
|
|
|
755
|
|
|
|
3.18
|
|
|
January 17, 2022
|
|
|
|
|
19,152
|
|
|
|
|
|
|
|
|
| Series C Warrants [Member] |
|
| Class Of Stock [Line Items] |
|
| Schedule of Changes in Outstanding Warrants |
|
Series C Agent Warrants
|
|
Number
|
|
|
Conversion
price
$
|
|
|
Number of
conversion
shares
(in
thousands)
|
|
|
Cumulative
common
stock
dividends
(in
thousands)
|
|
|
Series 1
|
|
|
1,929
|
|
|
|
1.16
|
|
|
|
1,663
|
|
|
|
1,164
|
|
|
Series 2
|
|
|
219
|
|
|
|
1.21
|
|
|
|
180
|
|
|
|
126
|
|
|
Series 3
|
|
|
296
|
|
|
|
1.15
|
|
|
|
257
|
|
|
|
180
|
|
|
|
|
|
2,444
|
|
|
|
|
|
|
|
2,100
|
|
|
|
1,470
|
|
|
| Schedule of Conversion of Series C Preferred Stock to Series C Warrants |
|
|
|
Balance
June 30, 2021
|
|
|
Number of
Warrants Issued
|
|
|
Number of
Warrants Exercised
|
|
|
Balance,
December 31, 2021
|
|
|
Conversion
price
$
|
|
|
Issuance of Preferred Series C-1 Agent Warrants
|
|
|
1,929
|
|
|
|
—
|
|
|
|
—
|
|
|
|
1,929
|
|
|
|
1.16
|
|
|
Issuance of Preferred Series C-2 Agent Warrants
|
|
|
219
|
|
|
|
—
|
|
|
|
—
|
|
|
|
219
|
|
|
|
1.21
|
|
|
Issuance of Preferred Series C-3 Agent Warrants
|
|
|
296
|
|
|
|
—
|
|
|
|
—
|
|
|
|
296
|
|
|
|
1.15
|
|
|
|
|
|
2,444
|
|
|
|
—
|
|
|
|
—
|
|
|
|
2,444
|
|
|
|
|
|
|
| Stock options [Member] |
|
| Class Of Stock [Line Items] |
|
| Schedule of Outstanding Under the Legacy Plan |
|
|
|
Number of
stock options
outstanding
(in thousands)
|
|
|
Weighted
average
exercise
price
|
|
|
Balance – June 30, 2021
|
|
|
6,392
|
|
|
|
2.26
|
|
|
Granted
|
|
|
3,954
|
|
|
|
0.99
|
|
|
Expired
|
|
|
(18
|
)
|
|
|
13.11
|
|
|
Forfeited
|
|
|
(239
|
)
|
|
|
1.70
|
|
|
Balance – December 31, 2021
|
|
|
10,089
|
|
|
|
1.75
|
|
|
| Summary of Stock Options Currently Outstanding and Exercisable |
|
Exercise price
$
|
|
|
Number
Outstanding at
December 31, 2021
(in thousands)
|
|
|
Weighted
average remaining
contractual life
(years)
|
|
|
Number
exercisable at
December 31, 2021
(in thousands)
|
|
|
|
0.61
|
|
|
|
816
|
|
|
|
7.68
|
|
|
|
764
|
|
|
|
0.74
|
|
|
|
250
|
|
|
|
7.86
|
|
|
|
104
|
|
|
|
0.96
|
|
|
|
3,519
|
|
|
|
9.85
|
|
|
|
—
|
|
|
|
1.24
|
|
|
|
435
|
|
|
|
9.73
|
|
|
|
109
|
|
|
|
1.36
|
|
|
|
300
|
|
|
|
8.73
|
|
|
|
125
|
|
|
|
1.37
|
|
|
|
75
|
|
|
|
9.33
|
|
|
|
—
|
|
|
|
1.70
|
|
|
|
4,458
|
|
|
|
8.71
|
|
|
|
2,293
|
|
|
|
6.10
|
|
|
|
18
|
|
|
|
6.85
|
|
|
|
17
|
|
|
|
8.70
|
|
|
|
12
|
|
|
|
5.84
|
|
|
|
12
|
|
|
|
9.83
|
|
|
|
83
|
|
|
|
6.39
|
|
|
|
83
|
|
|
|
10.60
|
|
|
|
4
|
|
|
|
6.28
|
|
|
|
4
|
|
|
|
11.70
|
|
|
|
30
|
|
|
|
1.16
|
|
|
|
30
|
|
|
|
15.75
|
|
|
|
3
|
|
|
|
0.42
|
|
|
|
3
|
|
|
|
20.00
|
|
|
|
9
|
|
|
|
0.08
|
|
|
|
9
|
|
|
|
21.10
|
|
|
|
7
|
|
|
|
5.52
|
|
|
|
7
|
|
|
|
29.60
|
|
|
|
2
|
|
|
|
3.09
|
|
|
|
2
|
|
|
|
37.60
|
|
|
|
5
|
|
|
|
4.11
|
|
|
|
5
|
|
|
|
41.00
|
|
|
|
4
|
|
|
|
4.86
|
|
|
|
4
|
|
|
|
42.00
|
|
|
|
30
|
|
|
|
1.62
|
|
|
|
30
|
|
|
|
44.80
|
|
|
|
3
|
|
|
|
4.11
|
|
|
|
3
|
|
|
|
49.50
|
|
|
|
13
|
|
|
|
5.13
|
|
|
|
13
|
|
|
|
53.20
|
|
|
|
8
|
|
|
|
4.35
|
|
|
|
8
|
|
|
|
61.60
|
|
|
|
2
|
|
|
|
1.25
|
|
|
|
2
|
|
|
|
92.00
|
|
|
|
3
|
|
|
|
1.42
|
|
|
|
3
|
|
|
|
|
|
|
|
10,089
|
|
|
|
|
|
|
|
3,630
|
|
|
| Schedule of Valuation Assumptions Using a Black-Scholes Pricing Model |
|
|
|
December 31,
2021
|
|
|
|
Dividend rate
|
|
|
—
|
|
%
|
|
Estimated volatility
|
|
|
91.68
|
|
%
|
|
Risk-free rate
|
|
|
1.78
|
|
%
|
|
Expected term – years
|
|
|
5.99
|
|
|
|
| Performance stock units [Member] |
|
| Class Of Stock [Line Items] |
|
| Schedule of Issuance of Series C Preferred Stock |
|
|
|
Series C Preferred Stock
|
|
|
|
|
Number
of shares
|
|
|
$
(in thousands)
|
|
|
Balance – June 30, 2021
|
|
|
20,092
|
|
|
|
14,652
|
|
|
Conversion of Series C Preferred stock to common stock
|
|
|
(2,915
|
)
|
|
|
(2,130
|
)
|
|
Balance – December 31, 2021
|
|
|
17,177
|
|
|
|
12,522
|
|
|
| Schedule of Series C Preferred Stock Outstanding, Conversion Shares and Dividends |
The Company’s Series C Preferred Stock outstanding, conversion shares, and dividends as of December 31, 2021, are as follows:
|
Series
|
|
Number
|
|
|
Conversion
price
$
|
|
|
Number of
conversion
shares
(in
thousands)
|
|
|
Dividend Shares (in thousands)
|
|
|
Series 1
|
|
|
14,234
|
|
|
|
1.16
|
|
|
|
12,271
|
|
|
|
8,791
|
|
|
Series 2
|
|
|
898
|
|
|
|
1.21
|
|
|
|
740
|
|
|
|
518
|
|
|
Series 3
|
|
|
2,045
|
|
|
|
1.15
|
|
|
|
1,778
|
|
|
|
1,262
|
|
|
|
|
|
17,177
|
|
|
|
|
|
|
|
14,789
|
|
|
|
10,571
|
|
|
Series C Dividends
|
|
Dividend Shares
(in thousands)
|
|
|
10% - August 19, 2021 (actual)
|
|
|
1,698
|
|
|
15% - August 19, 2022 (estimated)
|
|
|
2,218
|
|
|
20% - August 19, 2023 (estimated)
|
|
|
2,958
|
|
|
25% - August 19, 2024 (estimated)
|
|
|
3,697
|
|
|
|
|
|
10,571
|
|
|