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Note 5 - Loans and the Allowance for Credit Losses - Impairment Evaluation on Loans and Allowance for Credit Losses (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Individually evaluated impairment | $ 9,493 | $ 8,479
Collectively evaluated impairment | 78,979 | 77,955
Total | 89,205 | 90,513
Individually evaluated impairment | 89,717 | 91,976
Collectively evaluated impairment | 8,065,998 | 8,006,720
Total | 8,156,217 | 8,109,161
Financial Asset Acquired with Credit Deterioration [Member] |  |
Individually evaluated impairment | 733 | 4,079
Individually evaluated impairment | 502 | 10,465
Commercial Portfolio Segment [Member] |  |
Individually evaluated impairment | 8,482 | 7,426
Collectively evaluated impairment | 20,111 | 19,319
Total | 29,326 | 28,903
Individually evaluated impairment | 27,207 | 30,994
Collectively evaluated impairment | 1,445,086 | 1,436,866
Total | 1,472,795 | 1,472,734
Commercial Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |
Individually evaluated impairment | 733 | 2,158
Individually evaluated impairment | 502 | 4,874
Commercial Real Estate Portfolio Segment [Member] |  |
Individually evaluated impairment | 902 | 1,003
Collectively evaluated impairment | 51,607 | 50,818
Total | 52,509 | 53,742
Individually evaluated impairment | 47,478 | 46,886
Collectively evaluated impairment | 5,783,904 | 5,742,751
Total | 5,831,382 | 5,795,228
Commercial Real Estate Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |
Individually evaluated impairment | 0 | 1,921
Individually evaluated impairment | 0 | 5,591
Commercial Construction Portfolio Segment [Member] |  |
Individually evaluated impairment | 0 | 0
Collectively evaluated impairment | 3,546 | 3,718
Total | 3,546 | 3,718
Individually evaluated impairment | 8,650 | 8,232
Collectively evaluated impairment | 587,569 | 565,907
Total | 596,219 | 574,139
Commercial Construction Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |
Individually evaluated impairment | 0 | 0
Individually evaluated impairment | 0 | 0
Residential Portfolio Segment [Member] |  |
Individually evaluated impairment | 109 | 50
Collectively evaluated impairment | 3,710 | 4,093
Total | 3,819 | 4,143
Individually evaluated impairment | 6,382 | 5,864
Collectively evaluated impairment | 248,023 | 258,884
Total | 254,405 | 264,748
Residential Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |
Individually evaluated impairment | 0 | 0
Individually evaluated impairment | 0 | 0
Consumer Portfolio Segment [Member] |  |
Individually evaluated impairment | 0 | 0
Collectively evaluated impairment | 5 | 7
Total | 5 | 7
Individually evaluated impairment | 0 | 0
Collectively evaluated impairment | 1,416 | 2,312
Total | 1,416 | 2,312
Consumer Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |
Individually evaluated impairment | 0 | 0
Individually evaluated impairment | $ 0 | $ 0

X
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