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Note 7 - Loans and Related Allowance for Credit Losses - Troubled Debt Restructurings (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Modified, Amortized cost | $ 19,582 | $ 17,517
to Total Financing Receivables, Percentage | 1.30% | 1.30%
Modified, Amortized cost | $ 19,582 | $ 17,517
Payment Deferral [Member] |  |
Modified, Amortized cost | 0 | 0
Modified, Amortized cost | 0 | 0
Extended Maturity [Member] |  |
Modified, Amortized cost | 17,075 | 15,010
Modified, Amortized cost | 17,075 | 15,010
Payment Deferral and Extended Maturity [Member] |  |
Modified, Amortized cost | 2,507 | 2,507
Modified, Amortized cost | 2,507 | 2,507
Interest Rate Reduction and Term Past Due [Member] |  |
Modified, Amortized cost | 0 | 0
Modified, Amortized cost | 0 | 0
Interest Rate Reduction and Principal Forgiveness [Member] |  |
Modified, Amortized cost | 0 | 0
Modified, Amortized cost | 0 | 0
Commercial Portfolio Segment [Member] | Payment Deferral and Extended Maturity [Member] |  |
Modified, Amortized cost |  | 2,507
Modified, Amortized cost |  | 2,507
Commercial Portfolio Segment [Member] | Non-owner occupied Loan [Member] |  |
Modified, Amortized cost | $ 17,361 | $ 17,431
to Total Financing Receivables, Percentage | 1.20% | 1.30%
Modified, Amortized cost | $ 17,361 | $ 17,431
Commercial Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Payment Deferral [Member] |  |
Modified, Amortized cost | 0 | 0
Modified, Amortized cost | 0 | 0
Commercial Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Extended Maturity [Member] |  |
Modified, Amortized cost | 14,854 | 14,924
Modified, Amortized cost | 14,854 | 14,924
Commercial Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Payment Deferral and Extended Maturity [Member] |  |
Modified, Amortized cost | 2,507 |
Modified, Amortized cost | 2,507 |
Commercial Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Interest Rate Reduction and Term Past Due [Member] |  |
Modified, Amortized cost | 0 | 0
Modified, Amortized cost | 0 | 0
Commercial Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Interest Rate Reduction and Principal Forgiveness [Member] |  |
Modified, Amortized cost | 0 | 0
Modified, Amortized cost | 0 | 0
Construction and Other [Member] |  |
Modified, Amortized cost | $ 2,221 |
to Total Financing Receivables, Percentage | 0.10% |
Modified, Amortized cost | $ 2,221 |
Construction and Other [Member] | Payment Deferral [Member] |  |
Modified, Amortized cost | 0 |
Modified, Amortized cost | 0 |
Construction and Other [Member] | Extended Maturity [Member] |  |
Modified, Amortized cost | 2,221 |
Modified, Amortized cost | 2,221 |
Construction and Other [Member] | Payment Deferral and Extended Maturity [Member] |  |
Modified, Amortized cost | 0 |
Modified, Amortized cost | 0 |
Construction and Other [Member] | Interest Rate Reduction and Term Past Due [Member] |  |
Modified, Amortized cost | 0 |
Modified, Amortized cost | 0 |
Construction and Other [Member] | Interest Rate Reduction and Principal Forgiveness [Member] |  |
Modified, Amortized cost | 0 |
Modified, Amortized cost | $ 0 |
Commercial And Industrial [Member] |  |
Modified, Amortized cost |  | $ 86
to Total Financing Receivables, Percentage |  | 0.00%
Modified, Amortized cost |  | $ 86
Commercial And Industrial [Member] | Payment Deferral [Member] |  |
Modified, Amortized cost |  | 0
Modified, Amortized cost |  | 0
Commercial And Industrial [Member] | Extended Maturity [Member] |  |
Modified, Amortized cost |  | 86
Modified, Amortized cost |  | 86
Commercial And Industrial [Member] | Payment Deferral and Extended Maturity [Member] |  |
Modified, Amortized cost |  | 0
Modified, Amortized cost |  | 0
Commercial And Industrial [Member] | Interest Rate Reduction and Term Past Due [Member] |  |
Modified, Amortized cost |  | 0
Modified, Amortized cost |  | 0
Commercial And Industrial [Member] | Interest Rate Reduction and Principal Forgiveness [Member] |  |
Modified, Amortized cost |  | 0
Modified, Amortized cost |  | $ 0

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