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Equity (Tables) | 12 Months Ended
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Dec. 31, 2023
Equity |
Schedule of balance of additional paid-in capital | Balance of additional paid-in capital as of December 31, 2022 and 2023 were as follows:
​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31,
​ | ​ | 2022 | ​ | 2023
​ | ​ | (in thousands)
From ordinary shares | ​ | $ | 93,341 |  | 93,341
From treasury shares | ​ |  | 6,744 |  | 6,307
From share-based compensation | ​ |  | 10,715 |  | 13,338
From share of changes in equities of associates | ​ |  | 1,449 |  | 1,662
​ | ​ | $ | 112,249 |  | 114,648
Schedule of changes in accumulated other comprehensive income, net of tax | Changes in accumulated other comprehensive income, net of tax, are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Unrealized |  | Defined |  | Accumulated
​ | ​ | Foreign | ​ | gains | ​ | benefit | ​ | other
​ | ​ | currency | ​ | (losses) on | ​ | pension | ​ | comprehensive
​ | ​ | translation | ​ | securities | ​ | plans | ​ | income
​ | ​ | (in thousands)
Beginning balance, January 1, 2021 | ​ | $ | 216 | ​ | (869) | ​ | 105 | ​ | (548)
Exchange differences arising on translation of foreign operations | ​ |  | (72) | ​ | — | ​ | — | ​ | (72)
Changes in fair value of financial assets | ​ |  | — | ​ | (179) | ​ | — | ​ | (179)
Remeasurement of defined benefit pension plans | ​ |  | — | ​ | — | ​ | 133 | ​ | 133
Ending balance, December 31, 2021 | ​ |  | 144 | ​ | (1,048) | ​ | 238 | ​ | (666)
Exchange differences arising on translation of foreign operations | ​ |  | (245) | ​ | — | ​ | — | ​ | (245)
Changes in fair value of financial assets | ​ |  | — | ​ | 142 | ​ | — | ​ | 142
Remeasurement of defined benefit pension plans | ​ |  | — | ​ | — | ​ | 551 | ​ | 551
Ending balance, December 31, 2022 | ​ | ​ | (101) |  | (906) |  | 789 |  | (218)
Exchange differences arising on translation of foreign operations | ​ | ​ | (123) | ​ | — | ​ | — | ​ | (123)
Changes in fair value of financial assets | ​ | ​ | — | ​ | 152 | ​ | — | ​ | 152
Remeasurement of defined benefit pension plans | ​ | ​ | — | ​ | — | ​ | 9 | ​ | 9
Ending balance, December 31, 2023 | ​ | $ | (224) |  | (754) |  | 798 |  | (180)
Schedule of noncontrolling interest |
| (e) | Noncontrolling interest
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31,
​ |  | 2021 | ​ | 2022 |  | 2023
​ | ​ | (in thousands)
Balance at the beginning of year | ​ | $ | 5,023 | ​ | ​ | 2,258 |  | 1,249
Equity attributable to non-controlling interests | ​ | ​ | ​ | ​ |  | ​ |  | ​
Loss for the year | ​ | ​ | (2,961) | ​ |  | (1,515) |  | (1,195)
Changes in fair value of financial assets | ​ | ​ | (2) | ​ |  | 10 |  | —
Remeasurement of defined benefit pension plans | ​ | ​ | 5 | ​ |  | 26 |  | 2
Share-based compensation expenses | ​ | ​ | 38 | ​ |  | 140 |  | 40
New shares issued by subsidiaries | ​ | ​ | — | ​ |  | 445 |  | 6,015
Acquired the controlling power from noncontrolling interest | ​ | ​ | — | ​ | ​ | — | ​ | 811
Purchase of subsidiaries shares from noncontrolling interest | ​ | ​ | 175 | ​ | ​ | — | ​ | 12
Effect of Himax Media Solutions, Inc. merged into Himax Taiwan | ​ | ​ | — | ​ | ​ | (197) | ​ | —
Disposal of financial assets at fair value through other comprehensive income | ​ | ​ | — | ​ | ​ | (6) | ​ | —
Exchange differences arising on translation of foreign operations | ​ | ​ | — | ​ |  | 88 |  | —
Declaration of cash dividends | ​ | ​ | (20) | ​ |  | — |  | —
Balance at the end of year | ​ | $ | 2,258 | ​ | ​ | 1,249 |  | 6,934
​

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