v3.25.2
Note 10 - Segment Information - Schedule of Segment Information by Segment (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Sale of product $ 3,655,320 $ 3,169,233 $ 6,894,220 $ 6,073,691  
Depreciation and amortization 101,037 98,975 198,982 200,422  
Net loss (160,785) (233,445) (273,479) (387,496)  
Expenditures for segment assets 61,495 44,015 190,374 214,936  
Segment assets 17,510,099   17,510,099   $ 17,160,968
Operating Segments [Member]          
Sale of product 3,655,320 3,169,233 6,894,220 6,073,691  
Depreciation and amortization 83,830 88,185 164,016 161,516  
Net loss 676,560 783,022 1,465,063 1,732,395  
Expenditures for segment assets 61,495 39,799 167,935 182,761  
Segment assets 9,607,865   9,607,865   9,518,063
Operating Segments [Member] | Theranostics Products [Member]          
Sale of product 1,905,402 2,169,131 3,692,456 4,074,213  
Depreciation and amortization 9,895 5,697 18,104 14,743  
Net loss 1,009,387 1,171,390 1,886,381 2,184,854  
Expenditures for segment assets 4,046 0 50,561 93,924  
Segment assets 1,358,808   1,358,808   992,513
Operating Segments [Member] | Cobalt Products [Member]          
Sale of product 678,015 592,199 750,465 826,167  
Depreciation and amortization 16,360 23,527 32,362 27,414  
Net loss (97,040) 99,324 (245,266) 32,999  
Expenditures for segment assets 0 39,799 12,835 39,799  
Segment assets 122,282   122,282   167,881
Operating Segments [Member] | Nuclear Medicine Products [Member]          
Sale of product 1,013,814 407,903 2,340,580 1,173,311  
Depreciation and amortization 31,480 32,866 61,360 61,419  
Net loss (38,387) (377,758) 229,176 (368,262)  
Expenditures for segment assets 57,449 0 75,663 49,038  
Segment assets 2,649,344   2,649,344   2,928,814
Operating Segments [Member] | Medical Device Products [Member]          
Sale of product 58,089 0 110,719 0  
Depreciation and amortization 0 0 0 0  
Net loss (201,305) (83,839) (382,974) (112,350)  
Expenditures for segment assets 0 0 28,876 0  
Segment assets 653,882   653,882   553,117
Operating Segments [Member] | Fluorine Products [Member]          
Sale of product 0 0 0 0  
Depreciation and amortization 26,095 26,095 52,190 57,940  
Net loss 3,905 (26,095) (22,254) (4,846)  
Expenditures for segment assets 0 0 0 0  
Segment assets 4,823,549   4,823,549   4,875,738
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]          
Sale of product 0 0 0 0  
Depreciation and amortization 17,207 10,790 34,966 38,906  
Net loss (837,345) (1,016,467) (1,738,542) (2,119,891)  
Expenditures for segment assets 0 $ 4,216 22,439 $ 32,175  
Segment assets $ 7,902,234   $ 7,902,234   $ 7,642,905