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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
CONDENSED CONSOLIDATED BALANCE SHEETS    
Grants and accounts receivable, allowances $ 140 $ 158
Preferred Stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred Stock, shares authorized 5,000,000 5,000,000
Preferred Stock, shares issued 0 0
Preferred Stock, shares outstanding 0 0
Common Stock, par value (in dollars per share) $ 0.001 $ 0.001
Common Stock, shares authorized 100,000,000 100,000,000
Common Stock, shares issued 62,610,376 54,830,146
Common Stock, shares outstanding 62,610,376 54,830,146