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Note 21 - Condensed Financial Information of Cathay General Bancorp - Statements of Operations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Interest expense | $ 117,584 | $ 68,756 | $ 148,464
Non-interest expense | 303,432 | 286,523 | 283,465
Income before income tax expense | 472,536 | 381,843 | 253,965
Income tax expense | 111,894 | 83,539 | 25,105
Net income | 360,642 | 298,304 | 228,860
Parent Company [Member] |  |  |
Cash dividends from Cathay Bank | 232,773 | 230,000 | 146,000
Interest income | 30 | 36 | 49
Interest expense | 5,560 | 5,773 | 5,906
Non-interest Income/(loss) | 1,018 | 3,117 | (435)
Non-interest expense | 3,937 | 3,224 | 4,846
Income before income tax expense | 224,324 | 224,156 | 134,862
Income tax expense | (2,885) | (1,810) | (3,692)
Income before undistributed earnings of subsidiaries | 227,209 | 225,966 | 138,554
Undistributed earnings of subsidiary | 133,433 | 72,338 | 90,306
Net income | $ 360,642 | $ 298,304 | $ 228,860

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