v3.26.1
Condensed Consolidated Statements of Changes in Stockholders' Equity (Deficit) (Unaudited) - USD ($)
Conversions of Series F Preferred Stock Into Common Stock [Member]
Preferred Stock [Member]
Series F Convertible Preferred Stock [Member]
Conversions of Series F Preferred Stock Into Common Stock [Member]
Preferred Stock [Member]
Series G Convertible 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]
Conversion of Series F Preferred Stock into Common Stock [Member]
Preferred Stock [Member]
Series F Convertible Preferred Stock [Member]
Conversion of Series F Preferred Stock into Common Stock [Member]
Common Stock [Member]
Conversion of Series F Preferred Stock into Common Stock [Member]
Additional Paid-in Capital [Member]
Conversion of Series F Preferred Stock into Common Stock [Member]
AOCI Attributable to Parent [Member]
Conversion of Series F Preferred Stock into Common Stock [Member]
Retained Earnings [Member]
Conversion of Series F Preferred Stock into Common Stock [Member]
Conversions of Series G Preferred Stock Into Common Stock [Member]
Preferred Stock [Member]
Series F Convertible Preferred Stock [Member]
Conversions of Series G Preferred Stock Into Common Stock [Member]
Preferred Stock [Member]
Series G Convertible Preferred Stock [Member]
Conversions of Series G Preferred Stock Into Common Stock [Member]
Common Stock [Member]
Conversions of Series G Preferred Stock Into Common Stock [Member]
Additional Paid-in Capital [Member]
Conversions of Series G Preferred Stock Into Common Stock [Member]
AOCI Attributable to Parent [Member]
Conversions of Series G Preferred Stock Into Common Stock [Member]
Retained Earnings [Member]
Conversions of Series G Preferred Stock Into Common Stock [Member]
Series B Warrants [Member]
Preferred Stock [Member]
Series F Convertible Preferred Stock [Member]
Series B Warrants [Member]
Preferred Stock [Member]
Series G Convertible 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]
Series F Convertible Preferred Stock [Member]
Preferred Stock [Member]
Series G Convertible Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Series G Convertible Preferred Stock [Member]
Total
Balance (in shares) at Dec. 31, 2024                                                       5,935 0 9,661,664          
Balance at Dec. 31, 2024                                                       $ 6 $ 0 $ 9,662 $ 212,715,967 $ (86,376) $ (218,381,218)   $ (5,741,959)
Converted (in shares) (7,760) 0                     (5,350)             0                              
Conversion to common stock $ (8) $ 0   $ (8,265)                                                              
Conversion to common stock (in shares)     8,272,662                                                                
Conversion to common stock     $ 8,273   $ 0 $ 0 $ 0                                                        
Dividends on Series F Preferred Stock                                                       $ 0 $ 0 $ 0 (119,688) 0 0   (119,688)
Conversion to common stock                         $ (8,273)             $ 0                              
Shares issued (in shares)                                                       4,500 0 0          
Issuance of Series G Preferred Stock                                                       $ 5 $ 0 $ 0 4,499,995 0 0   4,500,000
Series F Warrants exchanged for shares of common stock (in shares)                                                     2,220,688 0 0 88,908          
Series F Warrants exchanged for shares of common stock                                                       $ 0 $ 0 $ 89 (89) 0 0   0
Stock-based compensation expense                                                       $ 0 $ 0 $ 0 161,710 0 0   161,710
Issuance of vested Restricted Common Stock (in shares)                                                       0 0 78,615          
Issuance of vested Restricted Common Stock                                                       $ 0 $ 0 $ 79 (79) 0 0   0
Deemed dividends on Series F Preferred Stock and Series F Warrants                                                       0 0 0 4,734,143 0 (4,734,143)   0
Issuance costs for sale of Series G Preferred Stock                                                       0 0 0 (47,000) 0 0   (47,000)
Amortization of unrecognized periodic pension costs                                                       0 0 0 0 107,565 0   107,565
Foreign currency cumulative translation adjustment                                                       0 0 0 0 191,613 0   191,613
Net income (loss)                                                       $ 0 $ 0 $ 0 0 0 5,779,663   5,779,663
Exercise of Series F Warrants (in shares)                                                       0 0 2,220,688          
Exercise of Series F Warrants                                                       $ 0 $ 0 $ 2,220 2,138,296 0 0   2,140,516
Balance (in shares) at Jun. 30, 2025                                                       2,675 0 21,802,649          
Balance at Jun. 30, 2025                                                       $ 3 $ 0 $ 21,803 233,381,747 212,802 (217,335,698)   16,280,657
Conversions to common stock (in shares)     (8,272,662)                                                                
Conversion of Convertible Note principal to Common Stock (in shares)                                                       0 0 1,480,112          
Conversion of Promissory Note and accrued interest to shares of Common Stock                                                       $ 0 $ 0 $ 1,480 1,415,515 0 0   1,416,995
Debt extinguishment loss on substantial modification to convertible debt                                                       $ 0 $ 0 $ 0 125,242 0 0   125,242
Amended Series B warrants reclassified to stockholders' equity                                         $ 0 $ 0 $ 0 $ 7,766,000 $ 0 $ 0 $ 7,766,000               7,766,000
Balance (in shares) at Dec. 31, 2024                                                       5,935 0 9,661,664          
Balance at Dec. 31, 2024                                                       $ 6 $ 0 $ 9,662 212,715,967 (86,376) (218,381,218)   (5,741,959)
Shares issued (in shares)                                                                   19,250  
Balance (in shares) at Jun. 30, 2026                                                       1,885 2,000 62,103,454          
Balance at Jun. 30, 2026                                                       $ 2 $ 2 $ 62,103 277,156,589 284,746 (246,589,767)   30,913,675
Balance (in shares) at Mar. 31, 2025                                                       5,025 0 12,820,421          
Balance at Mar. 31, 2025                                                       $ 5 $ 0 $ 12,821 216,542,203 (590) (212,377,511)   4,176,928
Converted (in shares) (5,350) 0                                                                  
Conversion to common stock $ (5)     $ (6,076)                                                              
Conversion to common stock (in shares)     6,081,754                                                                
Conversion to common stock   $ 0 $ 6,081   $ 0 $ 0 $ 0                                                        
Dividends on Series F Preferred Stock                                                       $ 0 $ 0 $ 0 (52,038) 0 0   (52,038)
Shares issued (in shares)                                                       3,000 0 0          
Issuance of Series G Preferred Stock                                                       $ 3 $ 0 $ 0 2,999,997 0 0   3,000,000
Series F Warrants exchanged for shares of common stock (in shares)                                                     1,952,839 0 0 88,908          
Series F Warrants exchanged for shares of common stock                                                       $ 0 $ 0 $ 89 (89) 0 0   0
Stock-based compensation expense                                                       $ 0 $ 0 $ 0 111,832 0 0   111,832
Issuance of vested Restricted Common Stock (in shares)                                                       0 0 78,615          
Issuance of vested Restricted Common Stock                                                       $ 0 $ 0 $ 79 (79) 0 0   0
Deemed dividends on Series F Preferred Stock and Series F Warrants                                                       0 0 0 3,677,811 0 (3,677,811)   0
Issuance costs for sale of Series G Preferred Stock                                                       0 0 0 (47,000) 0 0   (47,000)
Amortization of unrecognized periodic pension costs                                                                     0
Foreign currency cumulative translation adjustment                                                       0 0 0 0 213,392 0   213,392
Net income (loss)                                                       $ 0 $ 0 $ 0 0 0 (1,280,376)   (1,280,376)
Exercise of Series F Warrants (in shares)                                                       0 0 1,952,839          
Exercise of Series F Warrants                                                       $ 0 $ 0 $ 1,953 1,617,730 0 0   1,619,683
Balance (in shares) at Jun. 30, 2025                                                       2,675 0 21,802,649          
Balance at Jun. 30, 2025                                                       $ 3 $ 0 $ 21,803 233,381,747 212,802 (217,335,698)   16,280,657
Conversions to common stock (in shares)     (6,081,754)                                                                
Conversion of Convertible Note principal to Common Stock (in shares)                                                       0 0 780,112          
Conversion of Promissory Note and accrued interest to shares of Common Stock                                                       $ 0 $ 0 $ 780 646,214 0 0   646,994
Debt extinguishment loss on substantial modification to convertible debt                                                       $ 0 $ 0 $ 0 125,242 0 0   125,242
Amended Series B warrants reclassified to stockholders' equity                                         $ 0 $ 0 $ 0 $ 7,766,000 $ 0 $ 0 $ 7,766,000                
Balance (in shares) at Dec. 31, 2025                                                       4,122 6,190 43,613,800          
Balance at Dec. 31, 2025                                                       $ 4 $ 6 $ 43,614 266,736,538 191,185 (231,234,641)   35,736,706
Issuance of Series F Preferred Stock and warrants (in shares)                                                       1,000 0 0          
Issuance of Series F Preferred Stock and warrants                                                       $ 1 $ 0 $ 0 999,999 0 0   1,000,000
Converted (in shares)               (3,237)         (478) 0 (11,440)         (11,440)                           (11,440)  
Conversion to common stock               $ (3)   $ (3,792)       $ 0 $ (11)   $ (12,551)                                    
Conversion to common stock (in shares)                 3,795,448             12,562,267                                      
Conversion to common stock                 $ 3,795   $ 0 $ 0 $ 0     $ 12,562   $ 0 $ 0 $ 0                              
Dividends on Series F Preferred Stock                                                       $ 0 $ 0 $ 0 (57,292) 0 0   (57,292)
Conversion to common stock                         (3,795)             (12,562)                              
Shares issued (in shares)                                                       0 7,250 0       7,250  
Issuance of Series G Preferred Stock                                                       $ 0 $ 7 $ 0 7,249,993 0 0   7,250,000
Series F Warrants exchanged for shares of common stock (in shares)                                                       0 0 967,645          
Series F Warrants exchanged for shares of common stock                                                       $ 0 $ 0 $ 968 (968) 0 0   0
Stock-based compensation expense                                                       $ 0 $ 0 $ 0 212,791 0 0   212,791
Issuance of vested Restricted Common Stock (in shares)                                                       0 0 36,244          
Issuance of vested Restricted Common Stock                                                       $ 0 $ 0 $ 36 (36) 0 0   0
Deemed dividends on Series F Preferred Stock and Series F Warrants                                                       0 0 0 1,388,759 0 (1,388,759)   0
Issuance costs for sale of Series G Preferred Stock                                                       0 0 0 (317,500) 0 0   (317,500)
Amortization of unrecognized periodic pension costs                                                       0 0 0 0 4,365 0   4,365
Foreign currency cumulative translation adjustment                                                       0 0 0 0 89,196 0   89,196
Net income (loss)                                                       $ 0 $ 0 $ 0 0 (13,966,367)   (13,966,367)
Exercise of Series F Warrants (in shares)                                                       0 0 1,128,050          
Exercise of Series F Warrants                                                       $ 0 $ 0 $ 1,128 960,648 0 0   961,776
Balance (in shares) at Jun. 30, 2026                                                       1,885 2,000 62,103,454          
Balance at Jun. 30, 2026                                                       $ 2 $ 2 $ 62,103 277,156,589 284,746 (246,589,767)   30,913,675
Conversions to common stock (in shares)                 (3,795,448)             (12,562,267)                                      
Conversion of Promissory Note and accrued interest to shares of Common Stock                                                                     0
Amended Series B warrants reclassified to stockholders' equity                                                                     0
Balance (in shares) at Mar. 31, 2026                                                       1,863 500 57,346,783          
Balance at Mar. 31, 2026                                                       $ 2 $ 0 $ 57,347 271,660,183 304,038 (231,163,762)   40,857,808
Issuance of Series F Preferred Stock and warrants (in shares)                                                       500 0 0          
Issuance of Series F Preferred Stock and warrants                                                       $ 0 $ 0 $ 0 500,000 0 0   500,000
Converted (in shares)               (478)             (3,500)                                        
Conversion to common stock               $ 0   $ (559)         $ (3)                                        
Conversion to common stock (in shares)                 559,465             3,552,123                                      
Conversion to common stock                 $ 559   $ 0 $ 0 $ 0     $ 3,552   $ 0 $ 0 $ 0                              
Dividends on Series F Preferred Stock                                                       $ 0 $ 0 $ 0 (26,296) 0 0   (26,296)
Conversion to common stock                                 $ (3,549)                                    
Shares issued (in shares)                                                       0 5,000 0          
Issuance of Series G Preferred Stock                                                       $ 0 $ 5 $ 0 4,999,995 0 0   5,000,000
Series F Warrants exchanged for shares of common stock (in shares)                                                       0 0 608,839          
Series F Warrants exchanged for shares of common stock                                                       $ 0 $ 0 $ 609 (609) 0 0   0
Stock-based compensation expense                                                       $ 0 $ 0 $ 0 138,184 0 0   138,184
Issuance of vested Restricted Common Stock (in shares)                                                       0 0 36,244          
Issuance of vested Restricted Common Stock                                                       $ 0 $ 0 $ 36 (36) 0 0   0
Deemed dividends on Series F Preferred Stock and Series F Warrants                                                       0 0 0 39,276 0 (39,276)   0
Issuance costs for sale of Series G Preferred Stock                                                       0 0 0 (150,000) 0 0   (150,000)
Amortization of unrecognized periodic pension costs                                                       0 0 0 0 (342,544) 0   (342,544)
Foreign currency cumulative translation adjustment                                                       0 0 0 0 323,252 0   323,252
Net income (loss)                                                       $ 0 $ 0 $ 0 0 0 (15,386,729)   (15,386,729)
Balance (in shares) at Jun. 30, 2026                                                       1,885 2,000 62,103,454          
Balance at Jun. 30, 2026                                                       $ 2 $ 2 $ 62,103 $ 277,156,589 $ 284,746 $ (246,589,767)   $ 30,913,675
Conversions to common stock (in shares)                 (559,465)             (3,552,123)