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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Preferred stock
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Total
Balance at beginning of period at Dec. 31, 2023   $ 14 $ 112,565 $ (98,150) $ 14,429
Balance at beginning of period (in shares) at Dec. 31, 2023 47 1,420,125      
Increase (Decrease) in Stockholders' Equity          
Net loss       (3,925) (3,925)
Issuance of common stock in connection with at the market offering, net of issuance costs     78   78
Issuance of common stock in connection with at the market offering, net of issuance costs (in shares)   11,822      
Issuance of common stock for Board fees and consulting services   $ 1 308   309
Issuance of common stock for Board fees and consulting services (in shares)   50,186      
Stock-based compensation     1,054   1,054
Balance at end of period at Sep. 30, 2024   $ 15 114,005 (102,075) 11,945
Balance at end of period (in shares) at Sep. 30, 2024 47 1,482,133      
Balance at beginning of period at Jun. 30, 2024   $ 14 113,550 (101,449) 12,115
Balance at beginning of period (in shares) at Jun. 30, 2024 47 1,469,540      
Increase (Decrease) in Stockholders' Equity          
Net loss       (626) (626)
Issuance of common stock for Board fees and consulting services   $ 1 57   58
Issuance of common stock for Board fees and consulting services (in shares)   12,593      
Stock-based compensation     398   398
Balance at end of period at Sep. 30, 2024   $ 15 114,005 (102,075) 11,945
Balance at end of period (in shares) at Sep. 30, 2024 47 1,482,133      
Balance at beginning of period at Dec. 31, 2024   $ 15 114,519 (102,440) 12,094
Balance at beginning of period (in shares) at Dec. 31, 2024 47 1,493,639      
Increase (Decrease) in Stockholders' Equity          
Net loss       (889) (889)
Proceeds upon issuance of common stock from exercise of warrants   $ 2 1,258   1,260
Proceeds upon issuance of common stock from exercise of warrants (in shares)   226,303      
Issuance of common stock for Board fees and consulting services     180   180
Issuance of common stock for Board fees and consulting services (in shares)   25,945      
Stock-based compensation     1,104   1,104
Balance at end of period at Sep. 30, 2025   $ 17 117,061 (103,329) 13,749
Balance at end of period (in shares) at Sep. 30, 2025 47 1,745,887      
Balance at beginning of period at Jun. 30, 2025   $ 15 115,523 (103,250) 12,288
Balance at beginning of period (in shares) at Jun. 30, 2025 47 1,516,296      
Increase (Decrease) in Stockholders' Equity          
Net loss       (79) (79)
Proceeds upon issuance of common stock from exercise of warrants   $ 2 1,258   1,260
Proceeds upon issuance of common stock from exercise of warrants (in shares)   226,303      
Issuance of common stock for Board fees and consulting services     48   48
Issuance of common stock for Board fees and consulting services (in shares)   3,288      
Stock-based compensation     232   232
Balance at end of period at Sep. 30, 2025   $ 17 $ 117,061 $ (103,329) $ 13,749
Balance at end of period (in shares) at Sep. 30, 2025 47 1,745,887