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Note 15 - Mortgage Banking Activities (Details Textual) - USD ($) $ in Thousands | Jun. 30, 2022 | Mar. 07, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Principal Amount Outstanding on Loans Managed and Securitized or Asset-Backed Financing Arrangement | $ 2,160,000 |  | $ 698,000
Commonwealth [Member] |  |  |
Principal Amount Outstanding on Loans Managed and Securitized or Asset-Backed Financing Arrangement |  | $ 1,500,000 |
Mortgage Servicing Rights [Member] |  |  |
Servicing Asset at Fair Value, Amount, Ending Balance | 26,000 |  | 6,000
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance, Ending Balance | $ 0 |  | $ 0
Mortgage Servicing Rights [Member] | Commonwealth [Member] |  |  |
Servicing Asset at Fair Value, Amount, Ending Balance |  | $ 13,000 |

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