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Note 21 - Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] |
|  | Actual |  |  | Minimum Capital Required - Basel III |  |  | Required to be Considered Well Capitalized |
|  | Capital Amount |  |  | Ratio |  |  | Capital Amount |  |  | Ratio |  |  | Capital Amount |  |  | Ratio |
December 31, 2021 |  | (In thousands) |
Common Equity Tier 1 to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cathay General Bancorp |  | $ | 2,056,601 |  |  |  | 12.80 |  |  | $ | 1,124,381 |  |  |  | 7.00 |  |  | $ | 1,044,068 |  |  |  | 6.50 |
Cathay Bank |  |  | 2,137,925 |  |  |  | 13.32 |  |  |  | 1,123,721 |  |  |  | 7.00 |  |  |  | 1,043,455 |  |  |  | 6.50 |
Tier 1 Capital to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cathay General Bancorp |  |  | 2,056,601 |  |  |  | 12.80 |  |  |  | 1,365,320 |  |  |  | 8.50 |  |  |  | 1,285,007 |  |  |  | 8.00 |
Cathay Bank |  |  | 2,137,925 |  |  |  | 13.32 |  |  |  | 1,364,519 |  |  |  | 8.50 |  |  |  | 1,284,253 |  |  |  | 8.00 |
Total Capital to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cathay General Bancorp |  |  | 2,315,358 |  |  |  | 14.41 |  |  |  | 1,686,572 |  |  |  | 10.50 |  |  |  | 1,606,259 |  |  |  | 10.00 |
Cathay Bank |  |  | 2,281,182 |  |  |  | 14.21 |  |  |  | 1,685,582 |  |  |  | 10.50 |  |  |  | 1,605,316 |  |  |  | 10.00 |
Leverage Ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cathay General Bancorp |  |  | 2,056,601 |  |  |  | 10.40 |  |  |  | 791,226 |  |  |  | 4.00 |  |  |  | 989,033 |  |  |  | 5.00 |
Cathay Bank |  |  | 2,137,925 |  |  |  | 10.82 |  |  |  | 790,430 |  |  |  | 4.00 |  |  |  | 988,037 |  |  |  | 5.00 |
|  | Actual |  |  | Minimum Capital Required - Basel III |  |  | Required to be Considered Well Capitalized |
|  | Capital Amount |  |  | Ratio |  |  | Capital Amount |  |  | Ratio |  |  | Capital Amount |  |  | Ratio |
December 31, 2020 |  | (In thousands) |
Common Equity Tier 1 to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cathay General Bancorp |  | $ | 2,016,448 |  |  |  | 13.53 |  |  | $ | 1,042,967 |  |  |  | 7.00 |  |  | $ | 968,470 |  |  |  | 6.50 |
Cathay Bank |  |  | 2,059,056 |  |  |  | 13.83 |  |  |  | 1,041,911 |  |  |  | 7.00 |  |  |  | 967,489 |  |  |  | 6.50 |
Tier 1 Capital to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cathay General Bancorp |  |  | 2,016,448 |  |  |  | 13.53 |  |  |  | 1,266,460 |  |  |  | 8.50 |  |  |  | 1,191,963 |  |  |  | 8.00 |
Cathay Bank |  |  | 2,059,056 |  |  |  | 13.83 |  |  |  | 1,265,178 |  |  |  | 8.50 |  |  |  | 1,190,755 |  |  |  | 8.00 |
Total Capital to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cathay General Bancorp |  |  | 2,304,366 |  |  |  | 15.47 |  |  |  | 1,564,451 |  |  |  | 10.50 |  |  |  | 1,489,953 |  |  |  | 10.00 |
Cathay Bank |  |  | 2,231,474 |  |  |  | 14.99 |  |  |  | 1,562,866 |  |  |  | 10.50 |  |  |  | 1,488,444 |  |  |  | 10.00 |
Leverage Ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cathay General Bancorp |  |  | 2,016,448 |  |  |  | 10.94 |  |  |  | 737,382 |  |  |  | 4.00 |  |  |  | 921,727 |  |  |  | 5.00 |
Cathay Bank |  |  | 2,059,056 |  |  |  | 11.19 |  |  |  | 736,317 |  |  |  | 4.00 |  |  |  | 920,396 |  |  |  | 5.00 |

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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