Note 7 - Debt - Schedule of Outstanding Debt (Details) - USD ($)
|
3 Months Ended |
6 Months Ended |
|
|
Mar. 31, 2025 |
Dec. 31, 2024 |
Mar. 31, 2024 |
Mar. 31, 2025 |
Mar. 31, 2024 |
Sep. 30, 2024 |
May 14, 2024 |
| Amortization of original interest discount and debt issuance costs |
$ (6,300,000)
|
|
$ (100,000)
|
$ (24,000,000)
|
$ (200,000)
|
|
|
| Principal as of March 31, 2025 |
40,910,231
|
|
|
40,910,231
|
|
|
|
| Principal amount |
40,910,231
|
|
|
40,910,231
|
|
|
|
| Securities Purchase Agreement Dated May 14, 2024 [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
2,619
|
|
|
2,619
|
|
|
|
| Principal amount |
$ 2,619
|
|
|
$ 2,619
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 1.16
|
|
|
$ 1.16
|
|
|
|
| Principal |
$ 621,053
|
|
|
$ 621,053
|
|
|
|
| Maturity date |
|
|
|
Feb. 28, 2025
|
|
|
|
| Bollinger Loan [Member] |
|
|
|
|
|
|
|
| Principal amount |
|
$ 0
|
|
$ 0
|
|
|
|
| Original interest discount as of October 1, 2024 |
|
0
|
|
0
|
|
|
|
| Carrying, balance |
|
0
|
|
0
|
|
|
|
| Notes issued, principal |
|
10,000,000
|
|
|
|
|
|
| Original interest discount and debt issuance costs at inception |
|
0
|
|
|
|
|
|
| Amortization of original interest discount and debt issuance costs |
|
0
|
|
|
|
|
|
| Paid in cash |
|
0
|
|
|
|
|
|
| Principal converted |
|
0
|
|
|
|
|
|
| Original interest discount related to the principal converted |
|
0
|
|
|
|
|
|
| Other adjustments |
|
0
|
|
|
|
|
|
| Principal as of March 31, 2025 |
10,000,000
|
|
|
10,000,000
|
|
|
|
| Original interest discount as of March 31, 2025 |
0
|
|
|
0
|
|
|
|
| Carrying amount as of March 31, 2025 |
10,000,000
|
|
|
10,000,000
|
|
|
|
| Including presented as current liability |
|
10,000,000
|
|
|
|
|
|
| Including presented as noncurrent liability |
|
0
|
|
|
|
|
|
| Fair value - amount |
|
$ 10,000,000
|
|
|
|
|
|
| Contractual interest rate |
|
15.00%
|
|
|
|
|
|
| Principal amount |
10,000,000
|
|
|
10,000,000
|
|
$ 0
|
|
| Total net carrying amount |
10,000,000
|
|
|
10,000,000
|
|
0
|
|
| Senior Secured Convertible Notes [Member] |
|
|
|
|
|
|
|
| Principal amount |
|
$ 20,346,283
|
|
20,346,283
|
|
|
|
| Original interest discount as of October 1, 2024 |
|
(17,664,310)
|
|
(17,664,310)
|
|
|
|
| Carrying, balance |
|
2,681,973
|
|
2,681,973
|
|
|
|
| Notes issued, principal |
|
35,345,500
|
|
|
|
|
|
| Original interest discount and debt issuance costs at inception |
|
(35,345,500)
|
|
|
|
|
|
| Amortization of original interest discount and debt issuance costs |
|
7,962,228
|
|
|
|
|
|
| Paid in cash |
|
0
|
|
|
|
|
|
| Principal converted |
|
(24,781,552)
|
|
|
|
|
|
| Original interest discount related to the principal converted |
|
16,064,397
|
|
|
|
|
|
| Other adjustments |
|
0
|
|
|
|
|
|
| Principal as of March 31, 2025 |
30,910,231
|
|
|
30,910,231
|
|
|
|
| Original interest discount as of March 31, 2025 |
(28,983,185)
|
|
|
(28,983,185)
|
|
|
|
| Carrying amount as of March 31, 2025 |
$ 1,927,046
|
|
|
$ 1,927,046
|
|
|
|
| Including presented as current liability |
|
1,927,046
|
|
|
|
|
|
| Including presented as noncurrent liability |
|
0
|
|
|
|
|
|
| Fair value - amount |
|
$ 0
|
|
|
|
$ 17,700,000
|
|
| Contractual interest rate |
15.00%
|
15.00%
|
|
15.00%
|
|
20.00%
|
15.00%
|
| Principal amount |
$ 30,910,231
|
|
|
$ 30,910,231
|
|
$ 20,346,283
|
|
| Unamortized debt discount and issuance costs |
|
|
|
|
|
(17,664,310)
|
|
| Net carrying amount, current liability |
30,900,000
|
|
|
30,900,000
|
|
2,681,973
|
|
| Net carrying amount, noncurrent liability |
|
|
|
|
|
0
|
|
| Total net carrying amount |
1,927,046
|
|
|
1,927,046
|
|
$ 2,681,973
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
|
|
|
|
|
$ 1.16
|
|
| Principal |
35,345,500
|
|
|
35,345,500
|
|
|
|
| Bollinger Loan and Senior Secured Convertible Notes [Member] |
|
|
|
|
|
|
|
| Principal amount |
|
$ 20,346,283
|
|
20,346,283
|
|
|
|
| Original interest discount as of October 1, 2024 |
|
(17,664,310)
|
|
(17,664,310)
|
|
|
|
| Carrying, balance |
|
2,681,973
|
|
2,681,973
|
|
|
|
| Notes issued, principal |
|
45,345,500
|
|
|
|
|
|
| Original interest discount and debt issuance costs at inception |
|
(35,345,500)
|
|
|
|
|
|
| Amortization of original interest discount and debt issuance costs |
|
7,962,228
|
|
|
|
|
|
| Paid in cash |
|
0
|
|
|
|
|
|
| Principal converted |
|
(24,781,552)
|
|
|
|
|
|
| Original interest discount related to the principal converted |
|
16,064,397
|
|
|
|
|
|
| Other adjustments |
|
0
|
|
|
|
|
|
| Principal as of March 31, 2025 |
40,910,231
|
|
|
40,910,231
|
|
|
|
| Original interest discount as of March 31, 2025 |
(28,983,185)
|
|
|
(28,983,185)
|
|
|
|
| Carrying amount as of March 31, 2025 |
11,927,046
|
|
|
11,927,046
|
|
|
|
| Including presented as current liability |
|
11,927,046
|
|
|
|
|
|
| Including presented as noncurrent liability |
|
0
|
|
|
|
|
|
| Fair value - amount |
|
$ 0
|
|
|
|
|
|
| Contractual interest rate |
|
0.00%
|
|
|
|
|
|
| Principal amount |
40,910,231
|
|
|
40,910,231
|
|
$ 20,346,283
|
|
| Total net carrying amount |
11,927,046
|
|
|
11,927,046
|
|
2,681,973
|
|
| Investments #1 Pursuant to May 2024 Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
2,064,322
|
|
|
2,064,322
|
|
|
|
| Principal amount |
$ 2,064,322
|
|
|
$ 2,064,322
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 1.16
|
|
|
$ 1.16
|
|
|
|
| Principal |
$ 4,629,711
|
|
|
$ 4,629,711
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Matured Loans and Advances [Member] |
|
|
|
|
|
|
|
| Principal amount |
|
$ 2,717,804
|
|
$ 2,717,804
|
|
|
|
| Carrying, balance |
|
2,717,804
|
|
2,717,804
|
|
|
|
| Fair value - amount |
|
|
|
|
|
$ 1,805,000
|
|
| Contractual interest rate |
|
|
|
|
|
10.00%
|
|
| Principal amount |
|
|
|
|
|
$ 2,717,804
|
|
| Unamortized debt discount and issuance costs |
|
|
|
|
|
0
|
|
| Net carrying amount, current liability |
|
|
|
|
|
2,717,804
|
|
| Net carrying amount, noncurrent liability |
|
|
|
|
|
0
|
|
| Total net carrying amount |
|
|
|
|
|
2,717,804
|
|
| Matured Loans and Advances and Senior Convertible Notes [Member] |
|
|
|
|
|
|
|
| Principal amount |
|
23,064,087
|
|
23,064,087
|
|
|
|
| Carrying, balance |
|
$ 5,399,777
|
|
5,399,777
|
|
|
|
| Fair value - amount |
|
|
|
|
|
19,505,000
|
|
| Principal amount |
|
|
|
|
|
23,064,087
|
|
| Unamortized debt discount and issuance costs |
|
|
|
|
|
(17,664,310)
|
|
| Net carrying amount, current liability |
|
|
|
|
|
5,399,777
|
|
| Net carrying amount, noncurrent liability |
|
|
|
|
|
0
|
|
| Total net carrying amount |
|
|
|
|
|
$ 5,399,777
|
|
| Investments #2 Pursuant to May 2024 Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
4,210,526
|
|
|
4,210,526
|
|
|
|
| Principal amount |
$ 4,210,526
|
|
|
$ 4,210,526
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 0.21
|
|
|
$ 0.21
|
|
|
|
| Principal |
$ 4,210,526
|
|
|
$ 4,210,526
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Investments #3 Pursuant to May 2024 Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
4,011,712
|
|
|
$ 4,011,712
|
|
|
|
| Principal amount |
$ 4,011,712
|
|
|
$ 4,011,712
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 1.16
|
|
|
$ 1.16
|
|
|
|
| Principal |
$ 5,263,158
|
|
|
$ 5,263,158
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Securities Purchase Agreement dated January 23, 2025 [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
6,315,789
|
|
|
$ 6,315,789
|
|
|
|
| Principal amount |
$ 6,315,789
|
|
|
$ 6,315,789
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 0.08
|
|
|
$ 0.08
|
|
|
|
| Principal |
$ 6,315,789
|
|
|
$ 6,315,789
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Securities Purchase Agreement dated February 5, 2025 [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
3,147,368
|
|
|
$ 3,147,368
|
|
|
|
| Principal amount |
$ 3,147,368
|
|
|
$ 3,147,368
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 0.05
|
|
|
$ 0.05
|
|
|
|
| Principal |
$ 3,147,368
|
|
|
$ 3,147,368
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Investments #4 pursuant to May 2024 Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
1,578,947
|
|
|
$ 1,578,947
|
|
|
|
| Principal amount |
$ 1,578,947
|
|
|
$ 1,578,947
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 1.03
|
|
|
$ 1.03
|
|
|
|
| Principal |
$ 1,578,947
|
|
|
$ 1,578,947
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Investments #1 pursuant to January 2025 Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
526,316
|
|
|
$ 526,316
|
|
|
|
| Principal amount |
$ 526,316
|
|
|
$ 526,316
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 0.08
|
|
|
$ 0.08
|
|
|
|
| Principal |
$ 526,316
|
|
|
$ 526,316
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Securities Purchase Agreement dated March 6, 2025 [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
4,000,000
|
|
|
$ 4,000,000
|
|
|
|
| Principal amount |
$ 4,000,000
|
|
|
$ 4,000,000
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 0.37
|
|
|
$ 0.37
|
|
|
|
| Principal |
$ 4,000,000
|
|
|
$ 4,000,000
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Investments #5 pursuant to May 2024 Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
1,578,947
|
|
|
$ 1,578,947
|
|
|
|
| Principal amount |
$ 1,578,947
|
|
|
$ 1,578,947
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 0.07
|
|
|
$ 0.07
|
|
|
|
| Principal |
$ 1,578,947
|
|
|
$ 1,578,947
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Investments #1 pursuant to March 2025 Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
1,168,421
|
|
|
$ 1,168,421
|
|
|
|
| Principal amount |
$ 1,168,421
|
|
|
$ 1,168,421
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 0.37
|
|
|
$ 0.37
|
|
|
|
| Principal |
$ 1,168,421
|
|
|
$ 1,168,421
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Investments #1 pursuant to February 2025 Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
726,316
|
|
|
$ 726,316
|
|
|
|
| Principal amount |
$ 726,316
|
|
|
$ 726,316
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 0.05
|
|
|
$ 0.05
|
|
|
|
| Principal |
$ 726,316
|
|
|
$ 726,316
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|
| Investments #6 pursuant to May 2024 Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
| Principal as of March 31, 2025 |
1,578,948
|
|
|
$ 1,578,948
|
|
|
|
| Principal amount |
$ 1,578,948
|
|
|
$ 1,578,948
|
|
|
|
| Conversion price floor (not subject to reverse stock splits) (in dollars per share) |
$ 0.03
|
|
|
$ 0.03
|
|
|
|
| Principal |
$ 1,578,948
|
|
|
$ 1,578,948
|
|
|
|
| Maturity date |
|
|
|
Apr. 30, 2025
|
|
|
|