Note 2 - Going Concern (Details Textual)
|
|
|
|
|
|
|
|
|
|
|
1 Months Ended |
3 Months Ended |
6 Months Ended |
12 Months Ended |
|
|
|
|
Jun. 18, 2026
USD ($)
$ / shares
shares
|
Jun. 17, 2026
USD ($)
$ / shares
shares
|
Dec. 11, 2025
USD ($)
$ / shares
shares
|
Oct. 15, 2025
USD ($)
|
Sep. 02, 2025
$ / shares
shares
|
Jun. 13, 2025
USD ($)
$ / shares
shares
|
Feb. 27, 2025
USD ($)
$ / shares
shares
|
Mar. 20, 2024
USD ($)
$ / shares
shares
|
Nov. 02, 2023
USD ($)
$ / shares
shares
|
Sep. 30, 2022
USD ($)
shares
|
Jan. 31, 2026
shares
|
Dec. 31, 2025
USD ($)
$ / shares
shares
|
Oct. 31, 2025
USD ($)
shares
|
Jun. 30, 2026
USD ($)
$ / shares
shares
|
Mar. 31, 2026
shares
|
Jun. 30, 2025
USD ($)
$ / shares
shares
|
Jun. 30, 2026
USD ($)
$ / shares
shares
|
Jun. 30, 2025
USD ($)
$ / shares
shares
|
Dec. 31, 2025
USD ($)
$ / shares
shares
|
Dec. 31, 2024
USD ($)
$ / shares
shares
|
Nov. 14, 2025
USD ($)
|
Feb. 26, 2025
shares
|
May 29, 2024
$ / shares
shares
|
| Cash and Cash Equivalent | $ |
|
|
|
|
|
|
|
|
|
|
|
$ 5,945,894
|
|
$ 1,160,158
|
|
|
$ 1,160,158
|
|
$ 5,945,894
|
|
|
|
|
| Long-Term Line of Credit | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
818,339
|
|
|
818,339
|
|
|
|
|
|
|
| Retained Earnings (Accumulated Deficit) | $ |
|
|
|
|
|
|
|
|
|
|
|
(83,873,790)
|
|
(93,721,747)
|
|
|
(93,721,747)
|
|
(83,873,790)
|
|
|
|
|
| Net Income (Loss) Attributable to Parent | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
(3,965,303)
|
|
$ (3,734,484)
|
(9,793,824)
|
$ (8,194,948)
|
|
|
|
|
|
| Working Capital | $ |
|
|
|
|
|
|
|
|
|
|
|
$ 10,061,578
|
|
$ 10,961,087
|
|
|
10,961,087
|
|
$ 10,061,578
|
|
|
|
|
| Proceeds From Issuance of Common Stock, Net of Issuance Costs | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 4,363,925
|
185,874
|
|
|
|
|
|
| Warrants and Rights Outstanding, Term (Year) |
|
|
|
|
|
|
|
|
|
|
|
|
|
3 years 7 months 17 days
|
|
|
3 years 7 months 17 days
|
|
|
|
|
|
|
| Class of Warrant or Right, Outstanding (in shares) |
|
|
|
|
|
|
|
|
|
|
|
7,335,008
|
|
7,335,008
|
|
|
7,335,008
|
|
7,335,008
|
2,291,276
|
|
|
|
| Proceeds from Issuance of Warrants | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 105,183
|
116,781
|
|
|
|
|
|
| Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
$ 0.001
|
|
$ 0.001
|
|
|
$ 0.001
|
|
$ 0.001
|
|
|
|
|
| Proceeds from Warrant Exercises | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 0
|
$ 6,384,840
|
|
|
|
|
|
| Series C Preferred Stock [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, New Issues (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,074,586
|
|
|
|
|
|
|
| Preferred Stock, Dividend Rate, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8.00%
|
|
|
|
|
| Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
$ 0.001
|
|
$ 0.001
|
|
|
$ 0.001
|
|
$ 0.001
|
|
|
|
|
| May 2024 Shareholder Warrant Shares [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,295,091
|
|
1,295,091
|
|
|
|
|
1,295,000
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
|
|
|
|
|
|
$ 5.198
|
|
|
|
|
|
|
|
|
$ 5.198
|
|
$ 5.198
|
|
|
|
|
$ 5.198
|
| Warrants and Rights Outstanding, Term (Year) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5 years 6 months
|
| Class of Warrant or Right, Exercised During Period (in shares) |
|
|
|
|
|
|
755,558
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Outstanding (in shares) |
|
|
|
|
|
|
539,442
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,295,000
|
|
| Proceeds from Issuance of Warrants | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 6,731,410
|
|
|
|
|
|
| February 2025 Inducement Warrant [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Issued During Period (in shares) |
|
|
|
|
|
|
1,424,500
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
|
|
|
|
|
|
$ 6.502
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Warrants and Rights Outstanding, Term (Year) |
|
|
|
|
|
|
5 years 6 months
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Proceeds from Issuance of Warrants | $ |
|
|
|
|
|
|
$ 6,731,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| December 2025 Inducement Warrant Shares [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Issued During Period (in shares) |
|
|
3,840,421
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
|
|
2,194,526
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
|
|
$ 2.9
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Proceeds from Warrant Exercises | $ |
|
|
$ 6,364,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Warrants and Rights Outstanding | $ |
|
|
$ 4,485,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, Warrants Exercised (in shares) |
|
|
916,000
|
|
|
|
|
|
|
|
642,000
|
636,526
|
|
|
1,278,526
|
|
|
|
|
|
|
|
|
| At The Market Offering Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Equity Offering, Maximum Offering Amount | $ |
|
|
|
|
|
|
|
|
|
$ 13,000,000
|
|
|
|
|
|
|
|
|
|
|
$ 4,000,000
|
|
|
| Commission Percentage From Shares Sold in the ATM Agreement |
|
|
|
|
|
|
|
|
|
3.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, New Issues (in shares) |
|
|
|
|
|
|
|
|
|
872,027
|
|
|
|
|
|
|
3,157,774
|
22,725
|
|
|
|
|
|
| Proceeds from Issuance of Common Stock | $ |
|
|
|
|
|
|
|
|
|
$ 6,751,381
|
|
|
|
|
|
|
$ 4,003,273
|
$ 192,612
|
|
|
|
|
|
| Proceeds From Issuance of Common Stock, Net of Issuance Costs | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,869,882
|
|
|
|
|
|
|
| Payments of Stock Issuance Costs | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 133,391
|
$ 6,738
|
|
|
|
|
|
| Registered Direct Offering, 192,500 Shares of Common Stock [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, New Issues (in shares) |
|
|
|
|
|
|
|
|
192,500
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Proceeds from Issuance or Sale of Equity | $ |
|
|
|
|
|
|
|
|
$ 4,261,542
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Registered Direct Offering, 192,500 Shares of Common Stock [Member] | Pre-funded Warrant Shares [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Issued During Period (in shares) |
|
|
|
|
|
|
|
|
157,500
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Registered Direct Offering, 192,500 Shares of Common Stock [Member] | Private Sale Warrants Share [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Issued During Period (in shares) |
|
|
|
|
|
|
|
|
700,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
|
|
|
|
|
|
|
|
700,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
|
|
|
|
|
|
|
|
$ 13.4
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Warrants and Rights Outstanding, Term (Year) |
|
|
|
|
|
|
|
|
5 years 6 months
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Registered Direct Offering, 237,224 Shares of Common Stock [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, New Issues (in shares) |
|
|
|
|
|
|
|
237,224
|
|
|
|
|
|
|
|
|
|
|
|
237,224
|
|
|
|
| Proceeds from Issuance or Sale of Equity | $ |
|
|
|
|
|
|
|
$ 2,629,083
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Registered Direct Offering, 237,224 Shares of Common Stock [Member] | Pre-funded Warrant Shares [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Issued During Period (in shares) |
|
|
|
|
|
|
|
147,789
|
|
|
|
|
|
|
|
|
|
|
|
147,789
|
|
|
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 0.001
|
|
|
|
| Proceeds from Issuance of Warrants | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 1,093,492
|
|
|
|
| Registered Direct Offering, 237,224 Shares of Common Stock [Member] | Private Sale Warrants Share [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Issued During Period (in shares) |
|
|
|
|
|
|
|
770,026
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
|
|
|
|
|
|
|
770,026
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
|
|
|
|
|
|
|
$ 7.4
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Registered Direct Offering [Member] | Private Sale Warrants Share [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Warrants and Rights Outstanding, Term (Year) |
|
|
|
|
|
|
|
5 years 6 months
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Regulation A Offering [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
|
|
|
|
$ 4.5
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Outstanding (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
899,997
|
|
|
|
|
|
|
|
|
|
|
| Equity Maximum Offering, Units (in shares) |
|
|
|
|
3,100,000
|
3,100,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering Price |
|
|
|
|
3.25
|
3.25
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Number of Shares Per Unit Issued (in shares) |
|
|
|
|
1
|
1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |
|
|
|
|
$ 0.001
|
$ 0.001
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Number of Warrants Per Unit (in shares) |
|
|
|
|
1
|
1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |
|
|
|
|
$ 0.001
|
$ 0.001
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Expected Gross Proceeds From Issuance of Reg-A Units | $ |
|
|
|
|
|
$ 10,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Proceeds from Issuance of Reg-A Units | $ |
|
|
|
$ 9,990,000
|
|
|
|
|
|
|
|
|
$ 9,092,414
|
|
|
|
|
|
|
|
|
|
|
| Regulation A Offering [Member] | Series C Preferred Stock [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Preferred Stock, Dividend Rate, Percentage |
|
|
|
|
8.00%
|
8.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Regulation A Offering [Member] | Series C Preferred Stock Shares [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
|
|
|
|
|
$ 4.5
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| First Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, New Issues (in shares) |
|
208,333
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Proceeds from Issuance or Sale of Equity | $ |
|
$ 250,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Number of Shares Per Unit Issued (in shares) |
|
1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Number of Warrants Per Unit (in shares) |
|
1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |
|
$ 0.001
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Units Issued, Price Per Unit (in dollars per share) | $ / shares |
|
$ 1.2
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Payments of Stock Issuance Costs | $ |
|
$ 65,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| First Securities Purchase Agreement [Member] | First Agreement Warrants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
|
208,333
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
|
$ 1.5
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Warrants and Rights Outstanding, Term (Year) |
|
5 years
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |
|
1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| First Securities Purchase Agreement [Member] | First Agreement Warrants, Cashless [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
|
291,667
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |
|
1.4
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Second Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, New Issues (in shares) |
675,529
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Proceeds from Issuance of Common Stock | $ |
$ 472,870
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Payments of Stock Issuance Costs | $ |
$ 58,643
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Shares Issued, Price Per Share (in dollars per share) | $ / shares |
$ 0.7
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|