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Consolidated Statements of Shareholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balance at Dec. 31, 2021 $ 164 $ 742,042 $ (19) $ (629,433) $ 112,754
Balance, shares at Dec. 31, 2021 164,363        
Share-based compensation expense $ 1 15,460 15,461
Share-based compensation expense, shares 1,294        
Exercise of options $ 1 725 726
Exercise of options, shares 525        
Sales of common stock, net $ 5 13,994 13,999
Sales of common stock, net, shares 4,321        
Net loss (53,091) (53,091)
Other comprehensive income (loss) (108) (108)
Balance at Dec. 31, 2022 $ 171 772,221 (127) (682,524) 89,741
Balance, shares at Dec. 31, 2022 170,503        
Share-based compensation expense $ 2 16,139 16,141
Share-based compensation expense, shares 1,946        
Exercise of options 175 175
Exercise of options, shares 191        
Sales of common stock, net $ 22 72,230 72,252
Sales of common stock, net, shares 22,096        
Net loss (82,842) (82,842)
Other comprehensive income (loss) 337 337
Balance at Dec. 31, 2023 $ 195 860,765 210 (765,366) 95,804
Balance, shares at Dec. 31, 2023 194,736        
Share-based compensation expense $ 5 11,530 11,535
Share-based compensation expense, shares 4,537        
Exercise of options 62 62
Exercise of options, shares 84        
Sales of common stock, net $ 23 34,725 34,748
Sales of common stock, net, shares 23,291        
Net loss (96,915) (96,915)
Other comprehensive income (loss) (210) (210)
Conversions of notes payable $ 2 3,743 3,745
Conversions of notes payable, shares 2,345        
Balance at Dec. 31, 2024 $ 225 $ 910,825 $ (862,281) $ 48,769
Balance, shares at Dec. 31, 2024 224,993