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Note 21 - Fair Value (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Schedule of assets measured at fair value | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Fair Value Measurements at Reporting Date Using
​ | ​ | ​ | ​ | ​ | Quoted Prices | ​ | Significant | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | in Active | ​ | Other | ​ | Significant
​ | ​ | ​ | ​ | ​ | Markets for | ​ | Observable | ​ | Unobservable
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
​ |  | Fair Value |  | (Level 1) |  | (Level 2) |  | (Level 3)
​ | ​ | (dollars in thousands)
December 31, 2022: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Securities AFS: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. treasuries and govt. sponsored agency securities | ​ | $ | 16,981 | ​ | $ | — | ​ | $ | 16,981 | ​ | $ | —
Residential mortgage-backed and related securities | ​ |  | 66,215 | ​ |  | — | ​ |  | 66,215 | ​ |  | —
Municipal securities | ​ |  | 193,178 | ​ |  | — | ​ |  | 193,178 | ​ |  | —
Asset-backed securities | ​ | ​ | 18,728 | ​ | ​ | — | ​ | ​ | 18,728 | ​ | ​ | —
Other securities | ​ |  | 45,858 | ​ |  | — | ​ |  | 45,858 | ​ |  | —
Derivatives | ​ |  | 177,631 | ​ |  | — | ​ |  | 177,631 | ​ |  | —
Total assets measured at fair value | ​ | $ | 518,591 | ​ | $ | — | ​ | $ | 518,591 | ​ | $ | —
​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Derivatives | ​ | $ | 200,701 | ​ | $ | — | ​ | $ | 200,701 | ​ | $ | —
Total liabilities measured at fair value | ​ | $ | 200,701 | ​ | $ | — | ​ | $ | 200,701 | ​ | $ | —
​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
December 31, 2021: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Securities AFS: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
U.S. govt. sponsored agency securities | ​ | $ | 23,328 | ​ | $ | — | ​ | $ | 23,328 | ​ | $ | —
Residential mortgage-backed and related securities | ​ |  | 94,323 | ​ |  | — | ​ |  | 94,323 | ​ |  | —
Municipal securities | ​ |  | 168,266 | ​ |  | — | ​ |  | 168,266 | ​ |  | —
Asset-backed securities | ​ | ​ | 27,124 | ​ | ​ | — | ​ | ​ | 27,124 | ​ | ​ | —
Other securities | ​ |  | 24,789 | ​ |  | — | ​ |  | 24,789 | ​ |  | —
Derivatives | ​ |  | 222,220 | ​ |  | — | ​ |  | 222,220 | ​ |  | —
Total assets measured at fair value | ​ | $ | 560,050 | ​ | $ | — | ​ | $ | 560,050 | ​ | $ | —
​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Derivatives | ​ | $ | 225,135 | ​ | $ | — | ​ | $ | 225,135 | ​ | $ | —
Total liabilities measured at fair value | ​ | $ | 225,135 | ​ | $ | — | ​ | $ | 225,135 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ |  | Fair Value Measurements at Reporting Date Using
​ | ​ | ​ | ​ | ​ | Quoted Prices | ​ | Significant | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | in Active | ​ | Other | ​ | Significant
​ | ​ | ​ | ​ | ​ | Markets for | ​ | Observable | ​ | Unobservable
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
​ |  | Fair Value |  | Level 1 |  | Level 2 |  | Level 3
​ | ​ | (dollars in thousands)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2022: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Loans/leases evaluated individually | ​ | $ | 30,765 | ​ | $ | — | ​ | $ | — | ​ | $ | 30,765
OREO | ​ |  | 144 | ​ |  | — | ​ |  | — | ​ |  | 144
​ | ​ | $ | 30,909 | ​ | $ | — | ​ | $ | — | ​ | $ | 30,909
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2021: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Loans/leases evaluated individually | ​ | $ | 6,618 | ​ | $ | — | ​ | $ | — | ​ | $ | 6,618
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of assets measured at fair value, valuation techniques | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Quantitative Information about Level Fair Value Measurements |
​ | ​ | Fair Value | ​ | Fair Value | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
​ | ​ | December 31, | ​ | December 31, | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
​ |  | 2022 |  | 2021 |  | Valuation Technique |  | Unobservable Input |  | Range | ​
​ | ​ | (dollars in thousands) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Loans/leases evaluated individually | ​ | $ | 30,765 | ​ | $ | 6,618 |  | Appraisal of collateral |  | Appraisal adjustments |  | -10.00 | % | to |  | -30.00 | %
OREO | ​ |  | 144 | ​ |  | — |  | Appraisal of collateral |  | Appraisal adjustments |  | 0.00 | % | to |  | -35.00 | %
​
Schedule of assets and liabilities measured at fair value | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value | ​ | As of December 31, 2022 | ​ | As of December 31, 2021
​ | ​ | Hierarchy | ​ | Carrying | ​ | Estimated | ​ | Carrying | ​ | Estimated
​ |  | Level |  | Value |  | Fair Value |  | Value |  | Fair Value
​ | ​ | ​ | ​ | (dollars in thousands)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash and due from banks |  | Level 1 | ​ | $ | 59,723 | ​ | $ | 59,723 | ​ | $ | 37,490 | ​ | $ | 37,490
Federal funds sold |  | Level 2 | ​ |  | 56,910 | ​ |  | 56,910 | ​ |  | 12,370 | ​ |  | 12,370
Interest-bearing deposits at financial institutions |  | Level 2 | ​ |  | 67,360 | ​ |  | 67,360 | ​ |  | 75,292 | ​ |  | 75,292
Investment securities: |  |  | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
HTM |  | Level 2 | ​ |  | 587,142 | ​ |  | 535,636 | ​ |  | 472,385 | ​ |  | 522,297
AFS |  | Level 2 | ​ |  | 340,960 | ​ |  | 340,960 | ​ |  | 337,830 | ​ |  | 337,830
Loans/leases receivable, net |  | Level 3 | ​ |  | 28,486 | ​ |  | 30,765 | ​ |  | 6,128 | ​ |  | 6,618
Loans/leases receivable, net |  | Level 2 | ​ |  | 6,022,679 | ​ |  | 5,896,443 | ​ |  | 4,595,283 | ​ |  | 4,478,899
Derivatives |  | Level 2 | ​ |  | 177,631 | ​ |  | 177,631 | ​ |  | 222,220 | ​ |  | 222,220
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Deposits: |  |  | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Nonmaturity deposits |  | Level 2 | ​ |  | 5,199,633 | ​ |  | 5,199,633 | ​ |  | 4,501,424 | ​ |  | 4,501,424
Time deposits |  | Level 2 | ​ |  | 784,584 | ​ |  | 766,294 | ​ |  | 421,348 | ​ |  | 419,453
Short-term borrowings |  | Level 2 | ​ |  | 129,630 | ​ |  | 129,630 | ​ |  | 3,800 | ​ |  | 3,800
FHLB advances |  | Level 2 | ​ |  | 415,000 | ​ |  | 415,000 | ​ |  | 15,000 | ​ |  | 15,000
Subordinated notes | ​ | Level 2 | ​ | ​ | 232,662 | ​ | ​ | 250,613 | ​ | ​ | 113,850 | ​ | ​ | 116,203
Junior subordinated debentures |  | Level 2 | ​ |  | 48,602 | ​ |  | 41,545 | ​ |  | 38,155 | ​ |  | 31,072
Derivatives |  | Level 2 | ​ |  | 200,701 | ​ |  | 200,701 | ​ |  | 225,135 | ​ |  | 225,135

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- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI https://asc.fasb.org/extlink&oid=126976982&loc=SL7498348-110258 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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