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Condensed Consolidated Statements of Changes in Stockholders' Equity (Deficit) (Unaudited) - USD ($)
Conversions of Series F Preferred Stock Into Common Stock [Member]
Preferred Stock [Member]
Conversions of Series F Preferred Stock Into Common Stock [Member]
Common Stock [Member]
Conversions of Series F Preferred Stock Into Common Stock [Member]
Additional Paid-in Capital [Member]
Conversions of Series F Preferred Stock Into Common Stock [Member]
AOCI Attributable to Parent [Member]
Conversions of Series F Preferred Stock Into Common Stock [Member]
Retained Earnings [Member]
Conversions of Series F Preferred Stock Into Common Stock [Member]
October 2024 Reverse Stock Split [Member]
Preferred Stock [Member]
October 2024 Reverse Stock Split [Member]
Common Stock [Member]
October 2024 Reverse Stock Split [Member]
Additional Paid-in Capital [Member]
October 2024 Reverse Stock Split [Member]
AOCI Attributable to Parent [Member]
October 2024 Reverse Stock Split [Member]
Retained Earnings [Member]
October 2024 Reverse Stock Split [Member]
February 2024 Reverse Stock Split [Member]
Preferred Stock [Member]
February 2024 Reverse Stock Split [Member]
Common Stock [Member]
February 2024 Reverse Stock Split [Member]
Additional Paid-in Capital [Member]
February 2024 Reverse Stock Split [Member]
AOCI Attributable to Parent [Member]
February 2024 Reverse Stock Split [Member]
Retained Earnings [Member]
February 2024 Reverse Stock Split [Member]
Conversion of Convertible Note Into Common Stock [Member]
Preferred Stock [Member]
Conversion of Convertible Note Into Common Stock [Member]
Common Stock [Member]
Conversion of Convertible Note Into Common Stock [Member]
Additional Paid-in Capital [Member]
Conversion of Convertible Note Into Common Stock [Member]
AOCI Attributable to Parent [Member]
Conversion of Convertible Note Into Common Stock [Member]
Retained Earnings [Member]
Conversion of Convertible Note Into Common Stock [Member]
Series B Warrants [Member]
Preferred Stock [Member]
Series B Warrants [Member]
Common Stock [Member]
Series B Warrants [Member]
Additional Paid-in Capital [Member]
Series B Warrants [Member]
AOCI Attributable to Parent [Member]
Series B Warrants [Member]
Retained Earnings [Member]
Series B Warrants [Member]
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2023                                                             6,075 140,520,163        
Balance at Dec. 31, 2023                                                             $ 6 $ 140,521 $ 176,033,817 $ 106,303 $ (165,583,091) $ 10,697,556
Shares issued (in shares)                                                             3,100 0        
Issuance of Series F Preferred Stock and warrants, net of issuance costs                                                             $ 3 $ 0 3,024,997 0 0 3,025,000
Converted (in shares) (4,880)         (4,880)                                                            
Conversions to common stock $ (5)   $ (112)                                                                  
Conversions to common stock (in shares)   117,374                                 0 1,597                                
Conversions to common stock   $ 117   $ 0 $ 0 $ 0                         $ 0 $ 2 $ 99,998 $ 0 $ 0 $ 100,000                        
Dividends on Series F Preferred Stock                                                             $ 0 $ 0 (110,983) 0 0 (110,983)
Exercise of Series B Warrants (in shares)                                                             0 16,590        
Exercise of Series B Warrants                                                             $ 0 $ 17 497,684 0 0 497,701
Stock-based compensation expense                                                             $ 0 $ 0 47,115 0 0 $ 47,115
Issuance of Restricted Common Stock (in shares)                                                             0 687       687
Issuance of Restricted Common Stock                                                             $ 0 $ 1 (1) 0 0 $ 0
Conversion of Convertible Note principal and accrued interest to Common Stock (in shares)                                               1,597                        
Conversion of Promissory Note and accrued interest to shares of Common Stock                                                                       100,000
Deemed dividends on Series F Preferred Stock, Series B and F Warrants and warrant exchange                                                             0 0 5,257,455 0 (5,257,455) 0
Amended Series B warrants reclassified to stockholders' equity                                                                       0
Issuance costs for sale of preferred stock                                                             0 0 (272,976) 0 0 (272,976)
Foreign currency cumulative translation adjustment                                                             0 0 0 (152,495) 0 (152,495)
Net income (loss)                                                             $ 0 $ 0 0 0 (9,245,295) (9,245,295)
Balance (in shares) at Jun. 30, 2024                                                             4,295 276,774        
Balance at Jun. 30, 2024                                                             $ 4 $ 277 188,206,226 (46,192) (180,085,841) 8,074,474
Amortization of unrecognized periodic pension costs                                                                       0
Effect on existing shares due to Reverse Split (in shares)             (6,885,773)         0 (133,493,864)                                            
Effect on existing shares due to Reverse Split             $ (6,886) $ 6,886 $ 0 $ 0 $ 0 $ 0 $ (133,495) $ 133,495 $ 0 $ 0 $ 0                                    
Reduction of Conversion Price of Promissory Note on Exchange Agreement                                                             $ 0 $ 0 3,488,851 0 0 3,488,851
Balance (in shares) at Mar. 31, 2024                                                             3,945 10,891,427        
Balance at Mar. 31, 2024                                                             $ 4 $ 10,892 186,247,756 (57,350) (177,148,382) 9,052,920
Shares issued (in shares)                                                             2,100 0        
Issuance of Series F Preferred Stock and warrants, net of issuance costs                                                             $ 2 $ 0 2,074,998 0 0 2,075,000
Converted (in shares) (1,750)         (1,750)                                                            
Conversions to common stock $ (2)   (56)                                                                  
Conversions to common stock (in shares)   58,333                                                                    
Conversions to common stock   $ 58   0 0 $ 0                                                            
Dividends on Series F Preferred Stock                                                             0 0 (49,748) 0 0 (49,748)
Stock-based compensation expense                                                             $ 0 $ 0 28,535 0 0 $ 28,535
Issuance of Restricted Common Stock (in shares)                                                             0 612       612
Issuance of Restricted Common Stock                                                             $ 0 $ 1 (1) 0 0 $ 0
Conversion of Convertible Note principal and accrued interest to Common Stock (in shares)                                               0                        
Deemed dividends on Series F Preferred Stock, Series B and F Warrants and warrant exchange                                                             0 0 7,751 0 (7,751) 0
Issuance costs for sale of preferred stock                                                             0 0 (113,683) 0 0 (113,683)
Foreign currency cumulative translation adjustment                                                             0 0 0 11,158 0 11,158
Net income (loss)                                                             $ 0 $ 0 0 0 (2,929,708) (2,929,708)
Balance (in shares) at Jun. 30, 2024                                                             4,295 276,774        
Balance at Jun. 30, 2024                                                             $ 4 $ 277 188,206,226 (46,192) (180,085,841) 8,074,474
Amortization of unrecognized periodic pension costs                                                                       0
Effect on existing shares due to Reverse Split (in shares)             0 (10,673,599)                                                        
Effect on existing shares due to Reverse Split             $ 0 $ (10,674) $ 10,674 $ 0 $ 0 $ 0                                                
Balance (in shares) at Dec. 31, 2024                                                             5,935 9,661,664        
Balance at Dec. 31, 2024                                                             $ 6 $ 9,662 212,715,967 (86,376) (218,381,218) (5,741,959)
Shares issued (in shares)                                                             4,500 0        
Issuance of Series F Preferred Stock and warrants, net of issuance costs                                                             $ 5 $ 0 4,499,995 0 0 4,500,000
Converted (in shares) (7,760)         (7,760)                                                            
Conversions to common stock $ (8)   (8,265)                                                                  
Conversions to common stock (in shares)   8,272,662                                                                    
Conversions to common stock   $ 8,273   0 0 $ 0                                                            
Warrants exchanged for common stock (in shares)                                                             0 88,908        
Series F Warrants exchanged for shares of common stock                                                             $ 0 $ 89 (89) 0 0 0
Dividends on Series F Preferred Stock                                                             $ 0 $ 0 (119,688) 0 0 (119,688)
Exercise of Series B Warrants (in shares)                                                           2,220,688 0 2,220,688        
Exercise of Series B Warrants                                                             $ 0 $ 2,220 2,138,296 0 0 2,140,516
Stock-based compensation expense                                                             $ 0 $ 0 161,710 0 0 $ 161,710
Issuance of Restricted Common Stock (in shares)                                                             0 78,615       78,615
Issuance of Restricted Common Stock                                                             $ 0 $ 79 (79) 0 0 $ 0
Conversion of Convertible Note principal and accrued interest to Common Stock (in shares)                                               1,480,112             0 1,480,112        
Conversion of Promissory Note and accrued interest to shares of Common Stock                                                             $ 0 $ 1,480 1,415,515 0 0 1,416,995
Deemed dividends on Series F Preferred Stock, Series B and F Warrants and warrant exchange                                                             0 0 4,734,143 0 (4,734,143) 0
Debt extinguishment loss on substantial modification to convertible debt                                                             0 0 125,242 0 0 125,242
Amended Series B warrants reclassified to stockholders' equity                                                 $ 0 $ 0 $ 7,766,000 $ 7,766,000           7,766,000
Issuance costs for sale of preferred stock                                                             0 0 (47,000) (47,000)
Foreign currency cumulative translation adjustment                                                             0 0 0 191,613 0 191,613
Net income (loss)                                                             $ 0 $ 0 0 5,779,663 5,779,663
Balance (in shares) at Jun. 30, 2025                                                             2,675 21,802,649        
Balance at Jun. 30, 2025                                                             $ 3 $ 21,803 233,381,747 212,802 (217,335,698) 16,280,657
Amortization of unrecognized periodic pension costs                                                             $ 0 $ 0 0 107,565 0 107,565
Balance (in shares) at Mar. 31, 2025                                                             5,025 12,820,421        
Balance at Mar. 31, 2025                                                             $ 5 $ 12,821 216,542,203 (590) (212,377,511) 4,176,928
Shares issued (in shares)                                                             3,000 0        
Issuance of Series F Preferred Stock and warrants, net of issuance costs                                                             $ 3 $ 0 2,999,997 0 0 3,000,000
Converted (in shares) (5,350)         (5,350)                                                            
Conversions to common stock $ (5)   $ (6,076)                                                                  
Conversions to common stock (in shares)   6,081,754                                                                    
Conversions to common stock   $ 6,081   $ 0 $ 0 $ 0                                                            
Warrants exchanged for common stock (in shares)                                                             0 88,908        
Series F Warrants exchanged for shares of common stock                                                             $ 0 $ 89 (89) 0 0 0
Dividends on Series F Preferred Stock                                                             $ 0 $ 0 (52,038) 0 0 (52,038)
Exercise of Series B Warrants (in shares)                                                           1,952,839 0 1,952,839        
Exercise of Series B Warrants                                                             $ 0 $ 1,953 1,617,730 0 0 1,619,683
Stock-based compensation expense                                                             $ 0 $ 0 111,832 0 0 $ 111,832
Issuance of Restricted Common Stock (in shares)                                                             0 78,615       78,615
Issuance of Restricted Common Stock                                                             $ 0 $ 79 (79) 0 0 $ 0
Conversion of Convertible Note principal and accrued interest to Common Stock (in shares)                                               780,112             0 780,112        
Conversion of Promissory Note and accrued interest to shares of Common Stock                                                             $ 0 $ 780 646,214 0 0 646,994
Deemed dividends on Series F Preferred Stock, Series B and F Warrants and warrant exchange                                                             0 0 3,677,811 0 (3,677,811) 0
Debt extinguishment loss on substantial modification to convertible debt                                                             0 0 125,242 0 0 125,242
Amended Series B warrants reclassified to stockholders' equity                                                 $ 0 $ 0 $ 7,766,000 $ 0 $ 0 $ 7,766,000            
Issuance costs for sale of preferred stock                                                             0 0 (47,000) 0 0 (47,000)
Foreign currency cumulative translation adjustment                                                             0 0 0 213,392 0 213,392
Net income (loss)                                                             $ 0 $ 0 0 0 (1,280,376) (1,280,376)
Balance (in shares) at Jun. 30, 2025                                                             2,675 21,802,649        
Balance at Jun. 30, 2025                                                             $ 3 $ 21,803 $ 233,381,747 $ 212,802 $ (217,335,698) 16,280,657
Amortization of unrecognized periodic pension costs                                                                       $ 0