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STOCKHOLDERS' EQUITY (Details) |  |  |  |  |  |  |  |  | 12 Months Ended |  |
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Oct. 07, 2025 USD ($) item $ / shares shares | Jul. 02, 2025 USD ($) $ / shares shares | Jun. 24, 2025 | Jun. 23, 2025 | Jun. 18, 2025 | Jun. 06, 2025 USD ($) $ / shares shares | Jul. 21, 2024 USD ($) D $ / shares shares | Sep. 08, 2023 USD ($) $ / shares shares | Dec. 31, 2025 USD ($) $ / shares shares | Dec. 31, 2024 USD ($) $ / shares shares | Jul. 31, 2025 shares | Oct. 25, 2022 $ / shares shares
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Reverse stock split ratio |  |  | 0.033 |  | 0.033 |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  |  |  |  | 3,032,892 |  |  |
Proceeds from exercise of warrants | $ |  |  |  |  |  |  |  |  | $ 7,243,143 | $ 61,410,815 |  |
Warrant liability | $ |  |  |  |  |  |  |  |  | 226,000 | 1,718,000 |  |
Fair value of the warrants allocated to preferred stock | $ |  |  |  |  |  |  |  |  | 5,788,380 |  |  |
Exercise of warrants into common shares | $ |  |  |  |  |  |  |  |  | $ 7,981,437 | $ 2,298,143 |  |
Common stock par value | $ / shares |  |  |  |  |  |  |  |  | $ 0.00001 | $ 0.00001 |  |
Public offering |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from stockholders' equity | $ |  | $ 6,900,000 |  |  |  |  |  |  |  |  |  |
September 2023 Private Placement |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds | $ |  |  |  |  |  |  |  | $ 14,652,000,000 |  |  |  |
Net proceeds | $ |  |  |  |  |  |  |  | $ 815,000,000 |  |  |  |
October 2022 Public Offering and Private Placement |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  |  |  |  |  |  |  | 75,939
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 58.8
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Shares issued |  |  |  |  |  |  |  |  | 1,045,000 |  |  |
Fair value of the warrants allocated to preferred stock | $ |  |  |  |  |  |  |  |  | $ 11 |  |  |
Exercise of warrants into common shares (in shares) |  |  |  |  |  |  |  |  | 1,659,138 | 18,239 |  |
Exercise of warrants into common shares | $ |  |  |  |  |  |  |  |  | $ 16 |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Reverse stock split ratio |  |  |  | 0.10 |  |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Reverse stock split ratio |  |  |  | 0.033 |  |  |  |  |  |  |  |
Class A Units | Public offering |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Number of units issued |  | 1,045,000 |  |  |  |  |  |  |  |  |  |
Number of shares in a unit |  | 1 |  |  |  |  |  |  |  |  |  |
Price per unit | $ / shares |  | $ 5 |  |  |  |  |  |  |  |  |  |
Class A Units | Over allotment option |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Number of units issued |  | 180,000 |  |  |  |  |  |  |  |  |  |
Class B Unit | Public offering |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Number of units issued |  | 335,000 |  |  |  |  |  |  |  |  |  |
Price per unit | $ / shares |  | $ 4.99999 |  |  |  |  |  |  |  |  |  |
Series E-1 preferred stock | September 2023 Private Placement |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Conversion price per share | $ / shares |  |  |  |  |  |  |  | $ 35.6 |  |  |  |
Shares issued |  |  |  |  |  |  |  | 1,225 |  |  |  |
Series E-2 Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, share outstanding |  |  |  |  |  |  |  |  | 35.6 | 35.6 |  |
Series E-2 Preferred Stock | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Conversion of preferred shares into common shares (in shares) |  |  |  |  |  |  |  |  |  | 104,088 |  |
Series E-3 preferred stock | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Conversion of preferred shares into common shares (in shares) |  |  |  |  |  |  |  |  |  | 461,538 |  |
Series E-4 preferred stock |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Fair value of the warrants allocated to preferred stock | $ |  |  |  |  |  |  |  |  |  | $ 15,914,632 |  |
Series E-4 preferred stock | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Conversion of preferred shares into common shares (in shares) |  |  |  |  |  |  |  |  |  | 224,664 |  |
Common warrant | Public offering |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants term |  | 5 years |  |  |  |  |  |  |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  | $ 5.25 |  |  |  |  |  |  |  |  |  |
Common warrant | Class A Units | Public offering |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants in a unit |  | 1 |  |  |  |  |  |  |  |  |  |
Number of share of common stock per warrant |  | 1 |  |  |  |  |  |  |  |  |  |
Common warrant | Class B Unit | Public offering |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants in a unit |  | 1 |  |  |  |  |  |  |  |  |  |
Prefunded Warrant | Class B Unit | Public offering |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants in a unit |  | 1 |  |  |  |  |  |  |  |  |  |
Number of share of common stock per warrant |  | 1 |  |  |  |  |  |  |  |  |  |
October 2025 Warrant Inducement |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares | 1,048,094 |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares | $ 5.25 |  |  |  |  |  |  |  |  |  |  |
Price per share | $ / shares | 6 |  |  |  |  |  |  |  |  |  |  |
Price per warrant | $ / shares | $ 0.125 |  |  |  |  |  |  |  |  |  |  |
Number of warrants issued | item | 2 |  |  |  |  |  |  |  |  |  |  |
Price paid per warrant | $ / shares | $ 0.125 |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance and exercise of warrants | $ | $ 5,800,000 |  |  |  |  |  |  |  |  |  |  |
June 2025 Warrant Inducement |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  | 276,044 |  |  |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  |  | $ 9.123 |  |  |  |  |  |
Proceeds from exercise of warrants | $ |  |  |  |  |  | $ 2,500,000 |  |  |  |  |  |
2023 Tranche A Preferred Warrants | Series E-3 preferred stock | September 2023 Private Placement |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  |  |  | 2,205 |  |  |  |
2023 Tranche B Preferred Warrants |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  |  |  |  | 14,652 |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 143.25 |  |  |
Warrants outstanding |  |  |  |  |  |  |  |  |  |  | 105 |
2023 Tranche B Preferred Warrants | Series E-4 preferred stock |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  |  | 1,610 |  |  |  |  |
Preferred stock, par value (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 0.00001 |  |  |  |  |
Number of shares issuable upon conversion of preferred stock |  |  |  |  |  |  | 224,663 |  |  |  |  |
Conversion price per share | $ / shares |  |  |  |  |  |  | $ 75.6 |  |  |  |  |
Net proceeds from warrant exercises | $ |  |  |  |  |  |  | $ 17,500,000 |  |  |  |  |
Proceeds from exercise of warrants | $ |  |  |  |  |  |  | $ 19,400,000 |  |  |  |  |
2023 Tranche B Preferred Warrants | Series E-4 preferred stock | September 2023 Private Placement |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  |  |  | 1,715 |  |  |  |
2024 Tranche A Warrants |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  |  |  |  | 114,773 |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 75.6 |  | $ 75.6 |  |  |
Number of Days following the Announcement of Prescription Drug Use Fee Act Goal By FDA | D |  |  |  |  |  |  | 10 |  |  |  |  |
2024 Tranche B Warrants |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  |  |  |  | 139,877 |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 120 |  | $ 120 |  |  |
Number of days following the date of the Company's public announcement of its receipt of written approval from the FDA | D |  |  |  |  |  |  | 10 |  |  |  |  |
2024 Tranche C Warrants |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares |  |  |  |  |  |  |  |  | 72,663 |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 165 |  | $ 165 |  |  |
Number of days following the announcement of quarterly gross revenue from sales of iopofosine I 131. | D |  |  |  |  |  |  | 10 |  |  |  |  |
Threshold amount of quarterly gross revenues trigger for expiry of warrants | $ |  |  |  |  |  |  | $ 10,000,000 |  |  |  |  |
2025 Representative Warrants |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrants term |  |  |  |  |  |  |  |  | 5 years |  |  |
Warrants issued to purchase shares |  | 82,800 |  |  |  |  |  |  | 82,800 |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 7.75 |  |  |
July 2024 Warrants |  |  |  |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Warrant liability | $ |  |  |  |  |  |  |  |  | $ 180,000 | $ 1,200,000 |  |

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