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Note 6 - Loans and the Allowance for Credit Losses - Loans by Origination and Risk Designation (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Originated Current Fiscal Year | $ 383,330 |  | $ 383,330 |  | $ 511,688
Originated One Year Prior | 616,576 |  | 616,576 |  | 443,185
Originated Two Years Prior | 562,449 |  | 562,449 |  | 1,724,765
Originated Three Years Prior | 2,309,325 |  | 2,309,325 |  | 1,782,673
Originated Four Years Prior | 2,271,967 |  | 2,271,967 |  | 397,679
Originated Five or More Years Prior | 3,161,785 |  | 3,161,785 |  | 1,685,185
Revolving Loans | 1,863,706 |  | 1,863,706 |  | 1,735,307
Gross loans | 11,169,138 |  | 11,169,138 |  | 8,280,482
Gross write-off, current year |  |  | 0 |  | 0
Gross write-off, one year prior |  |  | 0 |  | 0
Gross write-off, two years prior |  |  | 0 |  | 1,003
Gross write-off, three years prior |  |  | 1,669 |  | 49
Gross write-off, four years prior |  |  | 0 |  | 0
Gross write-off, five years prior |  |  | 6,049 |  | 10,732
Gross write-off, revolving |  |  | 876 |  | 1,918
Gross write-off | 5,039 | $ 3,595 | 8,594 | $ 6,780 | 13,702
Pass [Member] |  |  |  |  |
Originated Current Fiscal Year | 383,330 |  | 383,330 |  | 509,780
Originated One Year Prior | 610,629 |  | 610,629 |  | 440,166
Originated Two Years Prior | 558,592 |  | 558,592 |  | 1,660,146
Originated Three Years Prior | 2,241,444 |  | 2,241,444 |  | 1,778,072
Originated Four Years Prior | 2,260,258 |  | 2,260,258 |  | 393,127
Originated Five or More Years Prior | 3,001,965 |  | 3,001,965 |  | 1,566,356
Revolving Loans | 1,840,368 |  | 1,840,368 |  | 1,711,061
Gross loans | 10,896,586 |  | 10,896,586 |  | 8,058,708
Special Mention [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 1,908
Originated One Year Prior | 5,947 |  | 5,947 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 56,459
Originated Three Years Prior | 47,604 |  | 47,604 |  | 2,538
Originated Four Years Prior | 841 |  | 841 |  | 1,643
Originated Five or More Years Prior | 83,103 |  | 83,103 |  | 66,563
Revolving Loans | 3,346 |  | 3,346 |  | 20,264
Gross loans | 140,841 |  | 140,841 |  | 149,375
Substandard [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 3,019
Originated Two Years Prior | 3,857 |  | 3,857 |  | 8,160
Originated Three Years Prior | 20,277 |  | 20,277 |  | 2,063
Originated Four Years Prior | 10,868 |  | 10,868 |  | 2,909
Originated Five or More Years Prior | 76,717 |  | 76,717 |  | 52,266
Revolving Loans | 19,992 |  | 19,992 |  | 3,982
Gross loans | 131,711 |  | 131,711 |  | 72,399
Doubtful [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 0 |  | 0 |  | 0
Commercial Portfolio Segment [Member] |  |  |  |  |
Originated Current Fiscal Year | 61,680 |  | 61,680 |  | 69,206
Originated One Year Prior | 89,019 |  | 89,019 |  | 160,086
Originated Two Years Prior | 146,491 |  | 146,491 |  | 201,124
Originated Three Years Prior | 200,901 |  | 200,901 |  | 239,820
Originated Four Years Prior | 230,960 |  | 230,960 |  | 31,360
Originated Five or More Years Prior | 147,606 |  | 147,606 |  | 133,894
Revolving Loans | 730,871 |  | 730,871 |  | 697,240
Gross loans | 1,607,528 |  | 1,607,528 |  | 1,532,730
Gross write-off, current year |  |  | 0 |  | 0
Gross write-off, one year prior |  |  | 0 |  | 0
Gross write-off, two years prior |  |  | 0 |  | 1,003
Gross write-off, three years prior |  |  | 1,669 |  | 49
Gross write-off, four years prior |  |  | 0 |  | 0
Gross write-off, five years prior |  |  | 467 |  | 316
Gross write-off, revolving |  |  | 875 |  | 1,918
Gross write-off | 3,011 | (0) | 3,011 | 300 | 3,286
Commercial Portfolio Segment [Member] | Pass [Member] |  |  |  |  |
Originated Current Fiscal Year | 61,680 |  | 61,680 |  | 67,298
Originated One Year Prior | 87,123 |  | 87,123 |  | 157,067
Originated Two Years Prior | 142,634 |  | 142,634 |  | 194,602
Originated Three Years Prior | 196,011 |  | 196,011 |  | 237,065
Originated Four Years Prior | 228,357 |  | 228,357 |  | 29,717
Originated Five or More Years Prior | 123,836 |  | 123,836 |  | 111,841
Revolving Loans | 712,620 |  | 712,620 |  | 678,206
Gross loans | 1,552,261 |  | 1,552,261 |  | 1,475,796
Commercial Portfolio Segment [Member] | Special Mention [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 1,908
Originated One Year Prior | 1,896 |  | 1,896 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 2,817
Originated Three Years Prior | 314 |  | 314 |  | 2,538
Originated Four Years Prior | 0 |  | 0 |  | 1,643
Originated Five or More Years Prior | 4,999 |  | 4,999 |  | 6,209
Revolving Loans | 596 |  | 596 |  | 17,491
Gross loans | 7,805 |  | 7,805 |  | 32,606
Commercial Portfolio Segment [Member] | Substandard [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 3,019
Originated Two Years Prior | 3,857 |  | 3,857 |  | 3,705
Originated Three Years Prior | 4,576 |  | 4,576 |  | 217
Originated Four Years Prior | 2,603 |  | 2,603 |  | 0
Originated Five or More Years Prior | 18,771 |  | 18,771 |  | 15,844
Revolving Loans | 17,655 |  | 17,655 |  | 1,543
Gross loans | 47,462 |  | 47,462 |  | 24,328
Commercial Portfolio Segment [Member] | Doubtful [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 0 |  | 0 |  | 0
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Originated Current Fiscal Year | 291,020 |  | 291,020 |  | 408,314
Originated One Year Prior | 475,402 |  | 475,402 |  | 268,533
Originated Two Years Prior | 376,511 |  | 376,511 |  | 1,481,673
Originated Three Years Prior | 1,842,309 |  | 1,842,309 |  | 1,511,933
Originated Four Years Prior | 1,873,803 |  | 1,873,803 |  | 341,305
Originated Five or More Years Prior | 2,342,943 |  | 2,342,943 |  | 1,453,635
Revolving Loans | 422,045 |  | 422,045 |  | 415,286
Gross loans | 7,624,033 |  | 7,624,033 |  | 5,880,679
Gross write-off, current year |  |  | 0 |  | 0
Gross write-off, one year prior |  |  | 0 |  | 0
Gross write-off, two years prior |  |  | 0 |  | 0
Gross write-off, three years prior |  |  | 0 |  | 0
Gross write-off, four years prior |  |  | 0 |  | 0
Gross write-off, five years prior |  |  | 5,582 |  | 10,416
Gross write-off, revolving |  |  | 0 |  | 0
Gross write-off | 2,027 | 3,595 | 5,582 | 6,480 | 10,416
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] |  |  |  |  |
Originated Current Fiscal Year | 291,020 |  | 291,020 |  | 408,314
Originated One Year Prior | 471,351 |  | 471,351 |  | 268,533
Originated Two Years Prior | 376,511 |  | 376,511 |  | 1,424,209
Originated Three Years Prior | 1,779,950 |  | 1,779,950 |  | 1,510,087
Originated Four Years Prior | 1,864,697 |  | 1,864,697 |  | 339,553
Originated Five or More Years Prior | 2,210,694 |  | 2,210,694 |  | 1,357,858
Revolving Loans | 422,045 |  | 422,045 |  | 415,286
Gross loans | 7,416,268 |  | 7,416,268 |  | 5,723,840
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 4,051 |  | 4,051 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 53,642
Originated Three Years Prior | 47,290 |  | 47,290 |  | 0
Originated Four Years Prior | 841 |  | 841 |  | 0
Originated Five or More Years Prior | 77,477 |  | 77,477 |  | 59,719
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 129,659 |  | 129,659 |  | 113,361
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 3,822
Originated Three Years Prior | 15,069 |  | 15,069 |  | 1,846
Originated Four Years Prior | 8,265 |  | 8,265 |  | 1,752
Originated Five or More Years Prior | 54,772 |  | 54,772 |  | 36,058
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 78,106 |  | 78,106 |  | 43,478
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 0 |  | 0 |  | 0
Commercial Construction Portfolio Segment [Member] |  |  |  |  |
Originated Current Fiscal Year | 487 |  | 487 |  | 15,390
Originated One Year Prior | 25,440 |  | 25,440 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 2,137
Originated Three Years Prior | 3,663 |  | 3,663 |  | 8,995
Originated Four Years Prior | 0 |  | 0 |  | 6,518
Originated Five or More Years Prior | 4,362 |  | 4,362 |  | 0
Revolving Loans | 647,270 |  | 647,270 |  | 583,206
Gross loans | 681,222 |  | 681,222 |  | 616,246
Gross write-off, current year |  |  | 0 |  | 0
Gross write-off, one year prior |  |  | 0 |  | 0
Gross write-off, two years prior |  |  | 0 |  | 0
Gross write-off, three years prior |  |  | 0 |  | 0
Gross write-off, four years prior |  |  | 0 |  | 0
Gross write-off, five years prior |  |  | 0 |  | 0
Gross write-off, revolving |  |  | 0 |  | 0
Gross write-off | (0) | (0) | 0 | (0) | 0
Commercial Construction Portfolio Segment [Member] | Pass [Member] |  |  |  |  |
Originated Current Fiscal Year | 487 |  | 487 |  | 15,390
Originated One Year Prior | 25,440 |  | 25,440 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 2,137
Originated Three Years Prior | 3,663 |  | 3,663 |  | 8,995
Originated Four Years Prior | 0 |  | 0 |  | 6,518
Originated Five or More Years Prior | 4,362 |  | 4,362 |  | 0
Revolving Loans | 645,066 |  | 645,066 |  | 581,002
Gross loans | 679,018 |  | 679,018 |  | 614,042
Commercial Construction Portfolio Segment [Member] | Special Mention [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 0 |  | 0 |  | 0
Commercial Construction Portfolio Segment [Member] | Substandard [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 2,204 |  | 2,204 |  | 2,204
Gross loans | 2,204 |  | 2,204 |  | 2,204
Commercial Construction Portfolio Segment [Member] | Doubtful [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 0 |  | 0 |  | 0
Residential Portfolio Segment [Member] |  |  |  |  |
Originated Current Fiscal Year | 28,589 |  | 28,589 |  | 17,763
Originated One Year Prior | 26,696 |  | 26,696 |  | 14,542
Originated Two Years Prior | 39,426 |  | 39,426 |  | 39,830
Originated Three Years Prior | 262,452 |  | 262,452 |  | 21,925
Originated Four Years Prior | 167,204 |  | 167,204 |  | 18,496
Originated Five or More Years Prior | 666,874 |  | 666,874 |  | 97,656
Revolving Loans | 63,405 |  | 63,405 |  | 39,479
Gross loans | 1,254,646 |  | 1,254,646 |  | 249,691
Gross write-off, current year |  |  | 0 |  | 0
Gross write-off, one year prior |  |  | 0 |  | 0
Gross write-off, two years prior |  |  | 0 |  | 0
Gross write-off, three years prior |  |  | 0 |  | 0
Gross write-off, four years prior |  |  | 0 |  | 0
Gross write-off, five years prior |  |  | 0 |  | 0
Gross write-off, revolving |  |  | 0 |  | 0
Gross write-off | (0) | (0) | 0 | (0) | 0
Residential Portfolio Segment [Member] | Pass [Member] |  |  |  |  |
Originated Current Fiscal Year | 28,589 |  | 28,589 |  | 17,763
Originated One Year Prior | 26,696 |  | 26,696 |  | 14,542
Originated Two Years Prior | 39,426 |  | 39,426 |  | 39,197
Originated Three Years Prior | 261,820 |  | 261,820 |  | 21,925
Originated Four Years Prior | 167,204 |  | 167,204 |  | 17,339
Originated Five or More Years Prior | 663,073 |  | 663,073 |  | 96,657
Revolving Loans | 60,522 |  | 60,522 |  | 36,471
Gross loans | 1,247,330 |  | 1,247,330 |  | 243,894
Residential Portfolio Segment [Member] | Special Mention [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 627 |  | 627 |  | 635
Revolving Loans | 2,750 |  | 2,750 |  | 2,773
Gross loans | 3,377 |  | 3,377 |  | 3,408
Residential Portfolio Segment [Member] | Substandard [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 633
Originated Three Years Prior | 632 |  | 632 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 1,157
Originated Five or More Years Prior | 3,174 |  | 3,174 |  | 364
Revolving Loans | 133 |  | 133 |  | 235
Gross loans | 3,939 |  | 3,939 |  | 2,389
Residential Portfolio Segment [Member] | Doubtful [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 0 |  | 0 |  | 0
Consumer Portfolio Segment [Member] |  |  |  |  |
Originated Current Fiscal Year | 1,554 |  | 1,554 |  | 1,015
Originated One Year Prior | 19 |  | 19 |  | 24
Originated Two Years Prior | 21 |  | 21 |  | 1
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 115 |  | 115 |  | 96
Gross loans | 1,709 |  | 1,709 |  | 1,136
Gross write-off, current year |  |  | 0 |  | 0
Gross write-off, one year prior |  |  | 0 |  | 0
Gross write-off, two years prior |  |  | 0 |  | 0
Gross write-off, three years prior |  |  | 0 |  | 0
Gross write-off, four years prior |  |  | 0 |  | 0
Gross write-off, five years prior |  |  | 0 |  | 0
Gross write-off, revolving |  |  | 1 |  | 0
Gross write-off | 1 | $ (0) | 1 | $ (0) | 0
Consumer Portfolio Segment [Member] | Pass [Member] |  |  |  |  |
Originated Current Fiscal Year | 1,554 |  | 1,554 |  | 1,015
Originated One Year Prior | 19 |  | 19 |  | 24
Originated Two Years Prior | 21 |  | 21 |  | 1
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 115 |  | 115 |  | 96
Gross loans | 1,709 |  | 1,709 |  | 1,136
Consumer Portfolio Segment [Member] | Special Mention [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 0 |  | 0 |  | 0
Consumer Portfolio Segment [Member] | Substandard [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | 0 |  | 0 |  | 0
Consumer Portfolio Segment [Member] | Doubtful [Member] |  |  |  |  |
Originated Current Fiscal Year | 0 |  | 0 |  | 0
Originated One Year Prior | 0 |  | 0 |  | 0
Originated Two Years Prior | 0 |  | 0 |  | 0
Originated Three Years Prior | 0 |  | 0 |  | 0
Originated Four Years Prior | 0 |  | 0 |  | 0
Originated Five or More Years Prior | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Gross loans | $ 0 |  | $ 0 |  | $ 0

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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- Definition Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
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