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Condensed Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Common Stock
Class A Common Stock
ATM Offering
Common Stock
Class A Common Stock
Shelf Registration, Registered Direct Offering, March 2025
Common Stock
Class A Common Stock
Common Stock
Class B Common Stock
Additional Paid-in Capital
ATM Offering
Additional Paid-in Capital
Shelf Registration, Registered Direct Offering, March 2025
Additional Paid-in Capital
Accumulative Deficit
Class A Common Stock
ATM Offering
Class A Common Stock
Class B Common Stock
ATM Offering
Shelf Registration, Registered Direct Offering, March 2025
Total
Beginning balance at Dec. 31, 2023     $ 2       $ 134,822 $ (161,458)           $ (26,634)
Beginning balance (in shares) at Dec. 31, 2023     1,603,772 187,156                    
Increase (decrease) in stockholders' equity (deficit)                            
Stock based compensation             334             $ 334
Stock options exercised (in shares)                           0
Share conversion to common stock             188             $ 188
Share conversion to common stock (in shares)     938                      
Proceeds from Equity Sale / Proceeds from Direct Registration, net of issuance costs             7,067             7,067
Proceeds from Equity Sale / Proceeds from Direct Registration, net of issuance costs (in shares)     270,255                      
Share conversion costs             (1)             (1)
Net Income (Loss)               (7,592)           (7,592)
Ending balance at Mar. 31, 2024     $ 2       142,410 (169,050)           (26,638)
Ending balance (in shares) at Mar. 31, 2024     1,874,965 187,156                    
Beginning balance at Dec. 31, 2024     $ 4       208,969 (193,192)           15,781
Beginning balance (in shares) at Dec. 31, 2024     4,065,347 336,759           4,065,347 336,759      
Increase (decrease) in stockholders' equity (deficit)                            
Stock based compensation             422             $ 422
Stock options exercised (in shares)                           0
Proceeds from Equity Sale / Proceeds from Direct Registration, net of issuance costs $ 1 $ 1     $ 7,410 $ 1,435           $ 7,411 $ 1,436  
Proceeds from Equity Sale / Proceeds from Direct Registration, net of issuance costs (in shares) 1,247,836 625,000             1,247,836          
Issuance of vendor warrants for consulting services             10             $ 10
Prefunded warrants exercised     $ 1       (1)              
Prefunded warrants exercised (in shares)     626,283                      
Net Income (Loss)               (6,897)           (6,897)
Ending balance at Mar. 31, 2025     $ 7       $ 218,245 $ (200,089)           $ 18,163
Ending balance (in shares) at Mar. 31, 2025     6,564,466 336,759           6,564,466 336,759