v3.26.1
DESCRIPTION OF BUSINESS (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Feb. 10, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Jul. 03, 2025
DESCRIPTION OF BUSINESS              
Cash and cash equivalents   $ 19,197,000 $ 10,969,000 $ 19,197,000 $ 10,969,000 $ 28,134,000  
Accumulated deficit   473,151,000   473,151,000   458,787,000  
Negative cash flows from operating activities       10,429,000 20,497,000 $ 20,400,000  
Additional offering-related expenses   $ 200,000   $ 200,000      
Secondary public offering              
DESCRIPTION OF BUSINESS              
Common stock shares issued and sold 9,200,000            
Public offering price $ 2.25            
Proceeds $ 18,900,000       20,700,000    
ATM Program              
DESCRIPTION OF BUSINESS              
Common stock shares issued and sold   6,052,953   6,052,953      
Public offering price   $ 1.31   $ 1.31      
Proceeds   $ 8,000,000   $ 7,954,000      
Sales commission on stock issuance   200,000   200,000      
Additional offering-related expenses   200,000   200,000      
Proceeds from issuance of common stock, net   7,600,000   7,600,000      
Aggregated offering price to be offered and sold   33,700,000   33,700,000     $ 50,000,000
Amortization of shelf related expenses   100,000 $ 0 100,000 $ 0    
$70.0 Million Credit Facility | Oxford Finance LLC              
DESCRIPTION OF BUSINESS              
Borrowings outstanding under credit facility   $ 65,000,000   $ 65,000,000