Annual report [Section 13 and 15(d), not S-K Item 405]

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Treasury Stock, Common [Member]
Total
Beginning balance, value at Dec. 31, 2023 $ 1,804 $ 1,544 $ 208,053,935 $ (193,234,196) $ 253,734 $ (5,281,180) $ 9,795,641
Beginning balance, shares at Dec. 31, 2023 1,804,394 1,543,385          
Issuance of common stock in connection with restricted stock units
Issuance of common stock in connection with restricted stock units, shares   417          
Exercise of purchase warrants $ 1 (1)
Exercise of purchase warrants, shares   1,038          
Share-based expense 171,814 171,814
Net loss (3,960,275) (3,960,275)
Ending balance, value at Dec. 31, 2024 $ 1,804 $ 1,545 208,225,748 (197,194,471) 253,734 (5,281,180) 6,007,180
Ending balance, shares at Dec. 31, 2024 1,804,394 1,544,840          
Issuance of common stock in October 2025 underwritten public offering, net of issuance costs $ 735 4,003,980 4,004,715
Conversion of Series B preferred stock to shares of common stock $ (350) $ 14 336
Conversion of Series B preferred stock to shares of common stock, shares   13,917          
Conversion of Series B preferred stock to shares of common stock, shares (349,849)            
Issuance of common stock in October 2025 underwritten public offering, net of issuance costs, shares   735,000          
Share-based expense 64,787 64,787
Net loss (2,680,860) (2,680,860)
Ending balance, value at Dec. 31, 2025 $ 1,454 $ 2,294 $ 212,294,851 $ (199,875,331) $ 253,734 $ (5,281,180) $ 7,395,822
Ending balance, shares at Dec. 31, 2025 1,454,545 2,293,757