Annual report [Section 13 and 15(d), not S-K Item 405]

EMPLOYEE STOCK OPTIONS, RESTRICTED STOCK AWARD PLAN AND 401(K) - Status of Restricted Stock and Performance Shares Grants (Details)

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EMPLOYEE STOCK OPTIONS, RESTRICTED STOCK AWARD PLAN AND 401(K) - Status of Restricted Stock and Performance Shares Grants (Details) - $ / shares
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Restricted stock units      
Stock units      
Outstanding at beginning of the year (in shares) 3,148,226 2,623,790 2,572,596
Granted (in shares) 2,867,570 2,270,842 1,393,273
Forfeited, cancelled or rescinded (in shares) (510,351) (66,174) (31,185)
Vested (in shares) (1,688,317) (1,680,232) (1,310,894)
Outstanding at end of year (in shares) 3,817,128 3,148,226 2,623,790
Weighted- Average Grant Date Fair Value      
Outstanding at beginning of the year (in dollars per share) $ 2.40 $ 2.29 $ 1.75
Granted (in dollars per share) 1.34 2.22 2.83
Forfeited, cancelled or rescinded (in dollars per share) 1.61 2.22 2.83
Vested (in dollars per share) 2.43 1.99 1.79
Outstanding at end of year (in dollars per share) $ 1.70 $ 2.40 $ 2.29
Performance stock unit awards      
Stock units      
Outstanding at beginning of the year (in shares) 2,022,378 1,720,432 860,216
Granted (in shares) 1,378,378 1,162,162 860,216
Incremental performance stock units vested (in shares) 248,742 309,808 0
Forfeited, cancelled or rescinded (in shares) (1,186,282) 0 0
Vested (in shares) (571,324) (1,170,024) 0
Outstanding at end of year (in shares) 1,891,892 2,022,378 1,720,432
Weighted- Average Grant Date Fair Value      
Outstanding at beginning of the year (in dollars per share) $ 3.11 $ 3.76 $ 3.87
Granted (in dollars per share) 2.27 2.71 3.65
Incremental performance stock units vested (in dollars per share) 0 0 0
Forfeited, cancelled or rescinded (in dollars per share) 2.38 0 0
Vested (in dollars per share) 2.79 3.66 0
Outstanding at end of year (in dollars per share) $ 2.47 $ 3.11 $ 3.76