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Note 9 - Loans - Activity in the Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Balance |  | $ 145,786 | $ 145,110 | $ 136,157 | $ 166,538 | $ 166,538
Provision/(reversal) for possible credit losses |  | 2,768 | (6,600) | 12,107 | (18,710) |
Charge-offs |  | (51) | (7,712) | (272) | (16,850) |
Recoveries |  | 269 | 458 | 780 | 1,838 |
Net (charge-offs)/recoveries |  | 218 | (7,254) | 508 | (15,012) | (17,611)
Balance |  | 148,772 | 131,256 | 148,772 | 131,256 | 136,157
Charge-offs |  | (51) | (7,712) | (272) | (16,850) |
Recoveries |  | 269 | 458 | 780 | 1,838 |
Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  | 6,404 | 10,450 | 7,100 | 5,880 | 5,880
Provision/(reversal) for possible credit losses |  | (268) | (2,400) | (964) | (3,848) |
Balance |  | 6,136 | 8,050 | 6,136 | 8,050 | 7,100
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |
Balance |  |  |  |  | (1,560) | (1,560)
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance | [1] |  |  |  | 6,018 | 6,018
Cumulative Effect, Period of Adoption, Adjusted Balance [Member] |  |  |  |  |  |
Balance |  |  |  |  | 164,978 | 164,978
Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  |  |  |  | 11,898 | 11,898
Commercial Portfolio Segment [Member] |  |  |  |  |  |
Balance |  | 44,738 | 42,034 | 43,394 | 68,742 | 68,742
Provision/(reversal) for possible credit losses |  | 4,208 | 5,590 | 5,414 | 18,216 |
Charge-offs |  | (50) | (7,712) | (271) | (16,850) | (20,051)
Recoveries |  | 175 | 155 | 534 | 1,425 | 1,706
Net (charge-offs)/recoveries |  | 125 | (7,557) | 263 | (15,425) | (18,345)
Balance |  | 49,071 | 40,067 | 49,071 | 40,067 | 43,394
Charge-offs |  | (50) | (7,712) | (271) | (16,850) | (20,051)
Recoveries |  | 175 | 155 | 534 | 1,425 | 1,706
Commercial Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  | 3,177 | 8,163 | 3,725 | 4,802 | 4,802
Provision/(reversal) for possible credit losses |  | (373) | (3,775) | (921) | (3,650) |
Balance |  | 2,804 | 4,388 | 2,804 | 4,388 | 3,725
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |
Balance |  |  |  |  | (31,466) | (31,466)
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance | [1] |  |  |  | 3,236 | 3,236
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] |  |  |  |  |  |
Balance |  |  |  |  | 37,276 | 37,276
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  |  |  |  | 8,038 | 8,038
Real Estate Construction Portfolio Segment [Member] |  |  |  |  |  |
Balance |  | 7,436 | 6,992 | 6,302 | 30,854 | 30,854
Provision/(reversal) for possible credit losses |  | (160) | (873) | 968 | (428) |
Charge-offs |  | 0 | 0 | 0 | 0 | 0
Recoveries |  | 0 | 0 | 6 | 0 | 76
Net (charge-offs)/recoveries |  | 0 | 0 | 6 | 0 | 76
Balance |  | 7,276 | 6,119 | 7,276 | 6,119 | 6,302
Charge-offs |  | 0 | 0 | 0 | 0 | 0
Recoveries |  | 0 | 0 | 6 | 0 | 76
Real Estate Construction Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  | 3,227 | 2,251 | 3,375 | 690 | 690
Provision/(reversal) for possible credit losses |  | 79 | 1,330 | (69) | (244) |
Balance |  | 3,306 | 3,581 | 3,306 | 3,581 | 3,375
Real Estate Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |
Balance |  |  |  |  | (24,307) | (24,307)
Real Estate Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance | [1] |  |  |  | 3,135 | 3,135
Real Estate Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] |  |  |  |  |  |
Balance |  |  |  |  | 6,547 | 6,547
Real Estate Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  |  |  |  | 3,825 | 3,825
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Balance |  | 63,878 | 65,347 | 61,081 | 49,205 | 49,205
Provision/(reversal) for possible credit losses |  | 4,634 | (7,416) | 7,336 | (26,362) |
Charge-offs |  | 0 | 0 | 0 | 0 | 0
Recoveries |  | 88 | 95 | 183 | 190 | 379
Net (charge-offs)/recoveries |  | 88 | 95 | 183 | 190 | 379
Balance |  | 68,600 | 58,026 | 68,600 | 58,026 | 61,081
Charge-offs |  | 0 | 0 | 0 | 0 | 0
Recoveries |  | 88 | 95 | 183 | 190 | 379
Commercial Real Estate Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  | 0 | 36 | 0 | 101 | 101
Provision/(reversal) for possible credit losses |  | 26 | 45 | 26 | 46 |
Balance |  | 26 | 81 | 26 | 81 | 0
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |
Balance |  |  |  |  | 34,993 | 34,993
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance | [1] |  |  |  | (66) | (66)
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] |  |  |  |  |  |
Balance |  |  |  |  | 84,198 | 84,198
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  |  |  |  | 35 | 35
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |  |  |
Balance |  | 29,630 | 30,734 | 25,379 | 17,737 | 17,737
Provision/(reversal) for possible credit losses |  | (5,945) | (3,899) | (1,745) | (10,128) |
Charge-offs |  | 0 | 0 | 0 | 0 |
Recoveries |  | 6 | 208 | 57 | 223 |
Net (charge-offs)/recoveries |  | 6 | 208 | 57 | 223 |
Balance |  | 23,691 | 27,043 | 23,691 | 27,043 | 25,379
Charge-offs |  | 0 | 0 | 0 | 0 |
Recoveries |  | 6 | 208 | 57 | 223 |
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  | 0 | 0 | 0 | 284 | 284
Provision/(reversal) for possible credit losses |  | 0 | 0 | 0 | 0 |
Balance |  | 0 | 0 | 0 | 0 | 0
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |
Balance |  |  |  |  | 19,211 | 19,211
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance | [1] |  |  |  | (284) | (284)
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] |  |  |  |  |  |
Balance |  |  |  |  | 36,948 | 36,948
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  |  |  |  | 0 | 0
Installment and Other Loans [Member ] |  |  |  |  |  |
Balance |  | 104 | 3 | 1 | 0 | 0
Provision/(reversal) for possible credit losses |  | 31 | (2) | 134 | (8) |
Charge-offs |  | (1) | 0 | (1) | 0 | 0
Recoveries |  | 0 | 0 | (0) | 0 | (0)
Net (charge-offs)/recoveries |  | (1) | 0 | (1) | 0 | 0
Balance |  | 134 | 1 | 134 | 1 | 1
Charge-offs |  | (1) | 0 | (1) | 0 | 0
Recoveries |  | 0 | 0 | (0) | 0 | (0)
Installment and Other Loans [Member ] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  | 0 | 0 | 0 | 3 | 3
Provision/(reversal) for possible credit losses |  | 0 | 0 | 0 | 0 |
Balance |  | $ 0 | $ 0 | $ 0 | 0 | 0
Installment and Other Loans [Member ] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |
Balance |  |  |  |  | 9 | 9
Installment and Other Loans [Member ] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance | [1] |  |  |  | (3) | (3)
Installment and Other Loans [Member ] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] |  |  |  |  |  |
Balance |  |  |  |  | 9 | 9
Installment and Other Loans [Member ] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Commitments to Extend Credit [Member] |  |  |  |  |  |
Balance |  |  |  |  | $ 0 | $ 0
[1] | Balance sheet amounts previously reported for the impact of the initial adoption of CECL on January 1, 2021 have been corrected. The correction decreased the allowance for loan losses by $2.2 million and increased the allowance for unfunded credit commitments by $5.5 million.

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