Quarterly report [Sections 13 or 15(d)]

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited)

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($)
Preferred Stock D [Member]
Preferred Stock E [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock, Common [Member]
Total
Beginning balance, value at Dec. 31, 2023 $ 1 $ 12 $ 7,306 $ 69,120,199 $ (63,603,552) $ (157,452) $ 5,366,514
Beginning balance, shares at Dec. 31, 2023 1,299 11,500 7,306,663        
Series D preferred stock issued $ 1 619,999 620,000
Series D preferred stock issued, shares 620            
Series E preferred stock issued $ 2 2,125,000 2,125,002
Series E preferred stock issued, shares   2,125          
Stock options compensation 141,204 141,204
Stock issuance costs (36,188) (36,188)
Stock issued for services $ 9 37,491 37,500
Stock issued for services, shares     8,655        
Stock compensation under ESPP 18,116 18,116
Net loss (2,752,309) (2,752,309)
Ending balance, value at Mar. 31, 2024 $ 2 $ 14 $ 7,315 72,025,821 (66,355,861) (157,452) 5,519,839
Ending balance, shares at Mar. 31, 2024 1,919 13,625 7,315,318        
Beginning balance, value at Dec. 31, 2023 $ 1 $ 12 $ 7,306 69,120,199 (63,603,552) (157,452) 5,366,514
Beginning balance, shares at Dec. 31, 2023 1,299 11,500 7,306,663        
Ending balance, value at Jun. 30, 2024 $ 1 $ 14 $ 7,623 72,563,300 (69,560,032) (157,452) 2,853,454
Ending balance, shares at Jun. 30, 2024 1,519 13,625 7,623,598        
Beginning balance, value at Mar. 31, 2024 $ 2 $ 14 $ 7,315 72,025,821 (66,355,861) (157,452) 5,519,839
Beginning balance, shares at Mar. 31, 2024 1,919 13,625 7,315,318        
Series D preferred stock issued 250,000 250,000
Series D preferred stock issued, shares 250            
Stock options compensation 59,905 59,905
Stock issuance costs (40,000) (40,000)
Stock issued for services $ 15 42,485 42,500
Stock issued for services, shares     15,041        
Stock issued under the Employee Stock Purchase Plan for cash and compensation $ 38 109,780 109,818
Stock issued under the Employee Stock Purchase Plan for cash and compensation, shares     38,041        
Series D preferred stock converted to common stock $ (1) $ 217 (216)
Series D preferred stock converted to common stock, shares (650)   216,668        
Common stock issued for cash $ 38 115,525 115,563
Common stock issued for cash, shares     38,530        
Net loss (3,204,171) (3,204,171)
Ending balance, value at Jun. 30, 2024 $ 1 $ 14 $ 7,623 72,563,300 (69,560,032) (157,452) 2,853,454
Ending balance, shares at Jun. 30, 2024 1,519 13,625 7,623,598        
Beginning balance, value at Dec. 31, 2024 $ 1 $ 14 $ 8,921 76,777,856 (74,368,009) (157,452) 2,261,331
Beginning balance, shares at Dec. 31, 2024 1,299 13,500 8,922,576        
Stock options compensation 22,030 22,030
Restricted stock compensation $ 1,962 950,011 951,973
Restricted stock compensation, shares     1,961,898        
Stock issuance costs (138,226) (138,226)
Stock options exercised $ 28 107,897 107,925
Stock options exercised, shares     27,712        
Stock issued for services $ 9 49,991 50,000
Stock issued for services, shares     9,360        
Series D preferred stock converted to common stock $ 100 (100)
Series D preferred stock converted to common stock, shares (300)   100,000        
Common stock issued for cash under ATM $ 634 3,954,306 3,954,940
Common stock issued for cash under ATM, shares     633,683        
Stock compensation under ESPP 21,644 21,644
Net loss (2,079,663) (2,079,663)
Ending balance, value at Mar. 31, 2025 $ 1 $ 14 $ 11,654 81,745,409 (76,447,672) (157,452) 5,151,954
Ending balance, shares at Mar. 31, 2025 999 13,500 11,655,229        
Beginning balance, value at Dec. 31, 2024 $ 1 $ 14 $ 8,921 76,777,856 (74,368,009) (157,452) 2,261,331
Beginning balance, shares at Dec. 31, 2024 1,299 13,500 8,922,576        
Ending balance, value at Jun. 30, 2025 $ 1 $ 13 $ 12,320 84,843,468 (79,965,703) (157,452) 4,732,647
Ending balance, shares at Jun. 30, 2025 999 12,500 12,321,162        
Beginning balance, value at Mar. 31, 2025 $ 1 $ 14 $ 11,654 81,745,409 (76,447,672) (157,452) 5,151,954
Beginning balance, shares at Mar. 31, 2025 999 13,500 11,655,229        
Series E preferred stock converted to common stock $ (1) $ 384 (383)
Series E preferred stock converted to common stock, shares   (1,000) 383,143        
Stock options compensation 22,204 22,204
Restricted stock compensation 1,028,012 1,028,012
Restricted stock issued $ 10 44,590 44,600
Restricted stock issued, shares     10,000        
Stock issuance costs (67,012) (67,012)
Stock options exercised for cash $ 7 36,845 36,852
Stock options exercised for cash, shares     6,667        
Stock options exercised - cashless $ 3 (3)
Stock options exercised - cashless, shares     3,576        
Stock issued for services $ 5 39,995 40,000
Stock issued for services, shares     5,419        
Stock issued under the Employee Stock Purchase Plan for cash and compensation $ 19 158,175 158,194
Stock issued under the Employee Stock Purchase Plan for cash and compensation, shares     18,983        
Common stock issued for cash under ATM $ 238 1,835,636 1,835,874
Common stock issued for cash under ATM, shares     238,145        
Net loss (3,518,031) (3,518,031)
Ending balance, value at Jun. 30, 2025 $ 1 $ 13 $ 12,320 $ 84,843,468 $ (79,965,703) $ (157,452) $ 4,732,647
Ending balance, shares at Jun. 30, 2025 999 12,500 12,321,162