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Note 3 - Bank Acquisitions - Summary of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Mar. 07, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Goodwill |  |  | $ 194,074 | $ 194,074 | $ 135,830 | $ 12,513
Cash consideration paid |  |  | 0 | 30,994 | 28,276 |
Business Combination, Consideration Transferred, Total |  |  | 0 | 167,913 | 232,946 |
Goodwill |  |  | 0 | 66,694 | $ 124,016 |
Commonwealth [Member] |  |  |  |  |  |
Mortgage loans held for sale |  | $ 3,559 |  |  |  |
Available for sale debt securities |  | 84,974 |  |  |  |
Held to maturity debt securities | [1] | 161,819 |  |  |  |
Federal Home Loan Bank stock, at cost |  | 4,436 |  |  |  |
Loans |  | 632,404 |  |  |  |
Allowance for credits losses on loans |  | (9,950) |  |  |  |
Net loans |  | 622,454 |  |  |  |
Premises and equipment, net |  | 32,793 |  |  |  |
Accrued interest receivable |  | 1,973 |  |  |  |
Goodwill |  | 67,000 | $ 58,244 | $ 58,244 |  |
Mortgage servicing rights |  | 12,676 |  |  |  |
Deferred income taxes, net |  | (3,727) |  |  |  |
Other assets |  | 8,324 |  |  |  |
Total assets acquired |  | 1,336,815 |  |  |  |
Non-interest bearing |  | 302,098 |  |  |  |
Interest bearing |  | 818,705 |  |  |  |
Total deposits |  | 1,120,803 |  |  |  |
SSUAR |  | 66,220 |  |  |  |
Subordinated debentures |  | 26,012 |  |  |  |
Line of credit |  | 3,200 |  |  |  |
Accrued interest payable |  | 243 |  |  |  |
Other liabilities |  | 19,118 |  |  |  |
Total liabilities assumed |  | 1,235,596 |  |  |  |
Net assets acquired |  | 101,219 |  |  |  |
Consideration for common stock |  | 133,825 |  |  |  |
Cash consideration paid |  | 30,994 |  |  |  |
Non-controlling interest of acquired entity |  | 3,094 |  |  |  |
Business Combination, Consideration Transferred, Total |  | 167,913 |  |  |  |
Goodwill |  | 66,694 |  |  |  |
Commonwealth [Member] | Core Deposits [Member] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  | 12,724 |  |  |  |
Commonwealth [Member] | Customer Lists [Member] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  | 14,360 |  |  |  |
Commonwealth [Member] | Cash [Member] |  |  |  |  |  |
Cash and due from banks |  | 380,450 |  |  |  |
Commonwealth [Member] | As Recorded By Acquiree [Member] |  |  |  |  |  |
Mortgage loans held for sale |  | 3,559 |  |  |  |
Available for sale debt securities |  | 247,209 |  |  |  |
Held to maturity debt securities | [1] | 0 |  |  |  |
Federal Home Loan Bank stock, at cost |  | 4,436 |  |  |  |
Loans |  | 645,551 |  |  |  |
Allowance for credits losses on loans |  | (16,102) |  |  |  |
Net loans |  | 629,449 |  |  |  |
Premises and equipment, net |  | 28,784 |  |  |  |
Accrued interest receivable |  | 1,973 |  |  |  |
Goodwill |  | 5,412 |  |  |  |
Mortgage servicing rights |  | 9,387 |  |  |  |
Deferred income taxes, net |  | 0 |  |  |  |
Other assets |  | 9,389 |  |  |  |
Total assets acquired |  | 1,320,048 |  |  |  |
Non-interest bearing |  | 302,098 |  |  |  |
Interest bearing |  | 818,334 |  |  |  |
Total deposits |  | 1,120,432 |  |  |  |
SSUAR |  | 66,220 |  |  |  |
Subordinated debentures |  | 26,806 |  |  |  |
Line of credit |  | 3,200 |  |  |  |
Accrued interest payable |  | 243 |  |  |  |
Other liabilities |  | 17,822 |  |  |  |
Total liabilities assumed |  | 1,234,723 |  |  |  |
Net assets acquired |  | 85,325 |  |  |  |
Commonwealth [Member] | As Recorded By Acquiree [Member] | Core Deposits [Member] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  | 0 |  |  |  |
Commonwealth [Member] | As Recorded By Acquiree [Member] | Customer Lists [Member] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  | 0 |  |  |  |
Commonwealth [Member] | As Recorded By Acquiree [Member] | Cash [Member] |  |  |  |  |  |
Cash and due from banks |  | 380,450 |  |  |  |
Commonwealth [Member] | As Adjusted By Acquirer [Member] |  |  |  |  |  |
Mortgage loans held for sale | [2] | 0 |  |  |  |
Available for sale debt securities | [2],[3] | (416) |  |  |  |
Held to maturity debt securities | [1],[2],[3] | 0 |  |  |  |
Federal Home Loan Bank stock, at cost | [2] | 0 |  |  |  |
Loans | [2],[4] | (13,147) |  |  |  |
Allowance for credits losses on loans | [2],[5] | 6,152 |  |  |  |
Net loans | [2] | (6,995) |  |  |  |
Premises and equipment, net | [2],[6] | 4,009 |  |  |  |
Accrued interest receivable | [2] | 0 |  |  |  |
Goodwill | [2],[7] | (5,412) |  |  |  |
Mortgage servicing rights | [2],[8] | 3,289 |  |  |  |
Deferred income taxes, net | [2],[9] | (3,727) |  |  |  |
Other assets | [2],[10] | (1,065) |  |  |  |
Total assets acquired | [2] | 16,767 |  |  |  |
Non-interest bearing | [2] | 0 |  |  |  |
Interest bearing | [2],[11] | 371 |  |  |  |
Total deposits | [2] | 371 |  |  |  |
Subordinated debentures | [2],[12] | (794) |  |  |  |
Line of credit | [2] | 0 |  |  |  |
Accrued interest payable | [2] | 0 |  |  |  |
Other liabilities | [2],[13] | 1,296 |  |  |  |
Total liabilities assumed | [2] | 873 |  |  |  |
Net assets acquired | [2] | 15,894 |  |  |  |
Commonwealth [Member] | As Adjusted By Acquirer [Member] | Core Deposits [Member] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | [2],[14] | 12,724 |  |  |  |
Commonwealth [Member] | As Adjusted By Acquirer [Member] | Customer Lists [Member] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | [2],[15] | 14,360 |  |  |  |
Commonwealth [Member] | As Adjusted By Acquirer [Member] | Cash [Member] |  |  |  |  |  |
Cash and due from banks | [2] | 0 |  |  |  |
Commonwealth [Member] | Classification Adjustments [Member] |  |  |  |  |  |
Available for sale debt securities | [1] | (161,819) |  |  |  |
Held to maturity debt securities | [1] | $ 161,819 |  |  |  |
[1] | As of acquisition date, securities with a fair value of $162 million were classified by Bancorp as HTM.
[2] | See the following page for explanations for individual fair value adjustments
[3] | Adjustment to investment securities based on Bancorp’s evaluation of the acquired portfolio.
[4] | Adjustments to loans to reflect estimated fair value adjustments, including the following: (in thousands) Fair value adjustment - acquired non PCD loans $ (9,216 ) Fair value adjustment - acquired PCD loans (4,094 ) Eliminate unrecognized loan fees on acquired loans and fair value hedge 163 Net loan fair value adjustments $ (13,147 )
[5] | The net adjustment to allowance for credit losses includes the following: (in thousands) Reversal of historical CB allowance for credit losses on loans $ (16,102 ) Estimate of lifetime credit losses for PCD loans 9,950 Net change in allowance for credit losses $ (6,152 )
[6] | Adjustment to premises and equipment to reflect the estimated fair value of acquired premises and equipment and right of use assets.
[7] | Elimination of the historical CB goodwill.
[8] | Adjustment to reflect the estimated fair value of MSRs.
[9] | Adjustment to net DTAs associated with the effects of the purchase accounting adjustments.
[10] | Adjustment to other assets to reflect the estimated fair value of prepaid and other assets.
[11] | Adjustment to deposits to reflect the estimated fair value of time deposits in interest rates, which was based on an analysis of market interest rates and maturity dates at the time of acquisition.
[12] | Adjustment to reflect the estimated fair value of subordinated debentures for differences in interest rates, which was based primarily on an analysis of market interest rates and maturity dates at the time of acquisition.
[13] | Adjustment to other liabilities to establish the reserve for unfunded loan commitments under CECL, operating lease liabilities and various accrual adjustments.
[14] | Calculation of CDI related to the acquisition.
[15] | Calculation of CLI related to the acquisition.

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