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Note 4 - Loans Receivable and Allowance for Loan and Lease Losses - Impaired Loans (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Impaired loans, related allowance | $ 1,600,000 |  | $ 1,500,000
Impaired loans, recorded investment | 30,000,000 |  | 21,200,000
With no allowance recorded, average recorded investment | 17,798,000 | $ 6,977,000 |
With no allowance recorded, interest income recognized | 175,000 | 35,000 |
With allowance recorded, average recorded investment | 6,445,000 | 395,000 |
With allowance recorded, interest income recognized |  |  |
Impaired Loans, Average recorded investment | 24,243,000 | 7,372,000 |
Impaired Loans, interest income recognized | 175,000 | 35,000 |
Business Activities Loans [Member] |  |  |
Impaired loans with no related allowance recorded, recorded investment | 25,036,000 |  | 15,391,000
Impaired loans with no related allowance recorded, unpaid principal balance | 25,163,000 |  | 16,799,000
Impaired loans with a related allowance recorded, recorded investment | 5,015,000 |  | 5,827,000
Impaired loans with a related allowance recorded, unpaid principal balance | 5,015,000 |  | 5,877,000
Impaired loans, related allowance | 1,625,000 |  | 1,545,000
Impaired loans, recorded investment | 30,051,000 |  | 21,218,000
Impaired loans, unpaid principal balance | 30,178,000 |  | 22,676,000
Commercial Real Estate Portfolio Segment [Member] |  |  |
With no allowance recorded, average recorded investment | 6,440,000 | 2,205,000 |
With no allowance recorded, interest income recognized | 13,000 | 25,000 |
With allowance recorded, average recorded investment | 472,000 |  |
With allowance recorded, interest income recognized |  |  |
Impaired Loans, Average recorded investment | 6,912,000 | 2,205,000 |
Impaired Loans, interest income recognized | 13,000 | 25,000 |
Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member] |  |  |
Impaired loans with no related allowance recorded, recorded investment | 12,026,000 |  | 4,606,000
Impaired loans with no related allowance recorded, unpaid principal balance | 12,145,000 |  | 5,109,000
Impaired loans with a related allowance recorded, recorded investment |  |  |
Impaired loans with a related allowance recorded, unpaid principal balance |  |  |
Impaired loans, related allowance |  |  |
Impaired loans, recorded investment | 12,026,000 |  | 4,606,000
Impaired loans, unpaid principal balance | 12,145,000 |  | 5,109,000
Residential Portfolio Segment [Member] |  |  |
With no allowance recorded, average recorded investment | 942,000 | 3,342,000 |
With no allowance recorded, interest income recognized | 4,000 | 3,000 |
With allowance recorded, average recorded investment | 2,089,000 |  |
With allowance recorded, interest income recognized |  |  |
Impaired Loans, Average recorded investment | 3,031,000 | 3,342,000 |
Impaired Loans, interest income recognized | 4,000 | 3,000 |
Residential Portfolio Segment [Member] | Business Activities Loans [Member] |  |  |
Impaired loans with no related allowance recorded, recorded investment | 1,760,000 |  | 670,000
Impaired loans with no related allowance recorded, unpaid principal balance | 1,768,000 |  | 703,000
Impaired loans with a related allowance recorded, recorded investment | 2,006,000 |  | 1,632,000
Impaired loans with a related allowance recorded, unpaid principal balance | 2,006,000 |  | 1,632,000
Impaired loans, related allowance | 563,000 |  | 216,000
Impaired loans, recorded investment | 3,766,000 |  | 2,302,000
Impaired loans, unpaid principal balance | 3,774,000 |  | 2,335,000
Commercial Portfolio Segment [Member] |  |  |
With no allowance recorded, average recorded investment | 775,000 | 739,000 |
With no allowance recorded, interest income recognized |  |  |
With allowance recorded, average recorded investment | 3,863,000 | 393,000 |
With allowance recorded, interest income recognized |  |  |
Impaired Loans, Average recorded investment | 4,638,000 | 1,132,000 |
Impaired Loans, interest income recognized |  |  |
Commercial Portfolio Segment [Member] | Business Activities Loans [Member] |  |  |
Impaired loans with no related allowance recorded, recorded investment | 1,589,000 |  | 488,000
Impaired loans with no related allowance recorded, unpaid principal balance | 1,589,000 |  | 1,281,000
Impaired loans with a related allowance recorded, recorded investment | 3,009,000 |  | 4,158,000
Impaired loans with a related allowance recorded, unpaid principal balance | 3,009,000 |  | 4,208,000
Impaired loans, related allowance | 1,062,000 |  | 1,299,000
Impaired loans, recorded investment | 4,598,000 |  | 4,646,000
Impaired loans, unpaid principal balance | 4,598,000 |  | 5,489,000
Consumer Portfolio Segment [Member] |  |  |
With no allowance recorded, average recorded investment | 841,000 | 691,000 |
With no allowance recorded, interest income recognized | 8,000 | 7,000 |
With allowance recorded, average recorded investment | 21,000 | 2,000 |
With allowance recorded, interest income recognized |  |  |
Impaired Loans, Average recorded investment | 862,000 | 693,000 |
Impaired Loans, interest income recognized | 8,000 | 7,000 |
Consumer Portfolio Segment [Member] | Business Activities Loans [Member] |  |  |
Impaired loans with no related allowance recorded, recorded investment | 861,000 |  | 827,000
Impaired loans with no related allowance recorded, unpaid principal balance | 861,000 |  | 867,000
Impaired loans with a related allowance recorded, recorded investment |  |  | 37,000
Impaired loans with a related allowance recorded, unpaid principal balance |  |  | 37,000
Impaired loans, related allowance |  |  | 30,000
Impaired loans, recorded investment | 861,000 |  | 864,000
Impaired loans, unpaid principal balance | 861,000 |  | 904,000
Construction Portfolio Segment [Member] |  |  |
With no allowance recorded, average recorded investment | 8,800,000 |  |
With no allowance recorded, interest income recognized | 150,000 |  |
With allowance recorded, average recorded investment |  |  |
With allowance recorded, interest income recognized |  |  |
Impaired Loans, Average recorded investment | 8,800,000 |  |
Impaired Loans, interest income recognized | 150,000 |  |
Construction Portfolio Segment [Member] | Business Activities Loans [Member] |  |  |
Impaired loans with no related allowance recorded, recorded investment | 8,800,000 |  | 8,800,000
Impaired loans with no related allowance recorded, unpaid principal balance | 8,800,000 |  | 8,839,000
Impaired loans with a related allowance recorded, recorded investment |  |  |
Impaired loans with a related allowance recorded, unpaid principal balance |  |  |
Impaired loans, related allowance |  |  |
Impaired loans, recorded investment | 8,800,000 |  | 8,800,000
Impaired loans, unpaid principal balance | $ 8,800,000 |  | $ 8,839,000

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