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Note 14 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | Feb. 07, 2022
Goodwill, Ending Balance | $ 375,696 |  | $ 375,696 |
Amortization of Intangible Assets | 250 | $ 224 |  |
Core Deposits [Member] |  |  |  |
Amortization of Intangible Assets | 250 | $ 224 |  |
Core Deposits [Member] | Amortization of Core Deposit Intangibles [Member] |  |  |  |
Impairment of Intangible Assets, Finite-Lived | $ (0) |  | 918 |
HSBC Bank USA West Coast Mass Market Consumer and Retail Banking Business [Member] |  |  |  |
Goodwill, Ending Balance |  |  |  | $ 3,517
HSBC Bank USA West Coast Mass Market Consumer and Retail Banking Business [Member] | Core Deposits [Member] |  |  |  |
Finite-Lived Intangible Assets Acquired |  |  | $ 3,100 |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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