XML 111 R68.htm IDEA: XBRL DOCUMENT v3.24.1
Details of Significant Accounts - Share-based payment, schedule of FV of stock options granted using black-scholes option-pricing model (Details) - Share Incentive Plan
shares in Thousands
12 Months Ended
Nov. 02, 2023
shares
Y
$ / shares
Aug. 21, 2023
shares
Y
$ / shares
May 23, 2023
shares
Y
$ / shares
Jan. 03, 2023
shares
Y
$ / shares
Jan. 21, 2022
Y
shares
$ / shares
Dec. 31, 2023
shares
Dec. 31, 2022
shares
Share-based payment arrangements              
Options granted (in shares) | shares 5 7 2,260 8 2,143 2,288 2,143
Stock price (in USD per share) $ 2.43 $ 4.00 $ 4.93 $ 7.20 $ 5.39    
Exercise price (in USD per share) $ 2.43 $ 3.916 $ 4.93 $ 7.20 $ 3.95    
Expected price volatility 70.37% 70.65% 69.15% 64.85% 53.75%    
Expected option life | Y 3.88 3.88 3.88 3.87 3.88    
Expected dividends 0.00% 0.00% 0.00% 0.00% 0.00%    
Risk-free interest rate 4.77% 4.64% 3.90% 4.07% 1.46%    
Fair value per unit (in USD per share) $ 1.3487 $ 2.2411 $ 2.6615 $ 3.7198 $ 2.7637