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Note 4 - Loans Receivable and Allowance for Loan Losses - Delinquency Status of Performing and Non-performing Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Loans receivable, gross | $ 724,555 | $ 719,647
Non-accruing loans | 5,036 | 3,778
Commercial Real Estate Portfolio Segment [Member] |  |
Loans receivable, gross | 313,868 | 299,925
Non-accruing loans | 474 |
Residential Portfolio Segment [Member] |  |
Loans receivable, gross | 144,633 | 146,377
Non-accruing loans | 3,037 | 3,028
Commercial Portfolio Segment [Member] |  |
Loans receivable, gross | 129,913 | 131,161
Non-accruing loans | 1,521 | 748
Consumer Portfolio Segment [Member] |  |
Loans receivable, gross | 83,185 | 87,707
Non-accruing loans | 4 | 2
Construction Portfolio Segment [Member] |  |
Loans receivable, gross | 46,348 | 47,619
Non-accruing loans |  |
Construction to Permanent Portfolio Segment [Member] |  |
Loans receivable, gross | 6,608 | 6,858
Pass [Member] |  |
Loans receivable, gross | 695,506 | 699,862
Non-accruing loans |  |
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Loans receivable, gross | 299,700 | 286,428
Non-accruing loans |  |
Pass [Member] | Residential Portfolio Segment [Member] |  |
Loans receivable, gross | 140,077 | 141,820
Non-accruing loans |  |
Pass [Member] | Commercial Portfolio Segment [Member] |  |
Loans receivable, gross | 128,392 | 129,432
Non-accruing loans |  |
Pass [Member] | Consumer Portfolio Segment [Member] |  |
Loans receivable, gross | 83,181 | 87,705
Non-accruing loans |  |
Pass [Member] | Construction Portfolio Segment [Member] |  |
Loans receivable, gross | 37,548 | 47,619
Non-accruing loans |  |
Pass [Member] | Construction to Permanent Portfolio Segment [Member] |  |
Loans receivable, gross | 6,608 | 6,858
Non-accruing loans |  |
Special Mention [Member] |  |
Loans receivable, gross | 11,508 | 11,967
Non-accruing loans |  |
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Loans receivable, gross | 9,989 | 10,438
Non-accruing loans |  |
Special Mention [Member] | Residential Portfolio Segment [Member] |  |
Loans receivable, gross | 1,519 | 1,529
Non-accruing loans |  |
Special Mention [Member] | Commercial Portfolio Segment [Member] |  |
Loans receivable, gross |  |
Non-accruing loans |  |
Substandard [Member] |  |
Loans receivable, gross | 17,541 | 7,818
Non-accruing loans | 5,036 | 3,778
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Loans receivable, gross | 4,179 | 3,059
Non-accruing loans | 474 |
Substandard [Member] | Residential Portfolio Segment [Member] |  |
Loans receivable, gross | 3,037 | 3,028
Non-accruing loans | 3,037 | 3,028
Substandard [Member] | Commercial Portfolio Segment [Member] |  |
Loans receivable, gross | 1,521 | 1,729
Non-accruing loans | 1,521 | 748
Substandard [Member] | Consumer Portfolio Segment [Member] |  |
Loans receivable, gross | 4 | 2
Non-accruing loans | 4 | 2
Substandard [Member] | Construction Portfolio Segment [Member] |  |
Loans receivable, gross | 8,800 |
Non-accruing loans |  |
Performing Financial Instruments [Member] |  |
Performing (accruing) loans, past due | 18,825 | 9,515
Performing (accruing) loans, current | 700,694 | 706,354
Loans receivable, gross | 719,519 | 715,869
Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 3,394 | 2,809
Performing (accruing) loans, current | 310,000 | 297,116
Loans receivable, gross | 313,394 | 299,925
Performing Financial Instruments [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 2,911 | 2,852
Performing (accruing) loans, current | 138,685 | 140,497
Loans receivable, gross | 141,596 | 143,349
Performing Financial Instruments [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 1,122 | 3,356
Performing (accruing) loans, current | 127,270 | 127,057
Loans receivable, gross | 128,392 | 130,413
Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 559 | 498
Performing (accruing) loans, current | 82,622 | 87,207
Loans receivable, gross | 83,181 | 87,705
Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 10,839 |
Performing (accruing) loans, current | 35,509 |
Loans receivable, gross | 46,348 |
Performing Financial Instruments [Member] | Pass [Member] |  |
Performing (accruing) loans, past due | 5,801 | 4,196
Performing (accruing) loans, current | 689,705 | 695,666
Loans receivable, gross | 695,506 | 699,862
Performing Financial Instruments [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 689 |
Performing (accruing) loans, current | 299,011 | 286,428
Loans receivable, gross | 299,700 | 286,428
Performing Financial Instruments [Member] | Pass [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 1,392 | 1,323
Performing (accruing) loans, current | 138,685 | 140,497
Loans receivable, gross | 140,077 | 141,820
Performing Financial Instruments [Member] | Pass [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 1,122 | 2,375
Performing (accruing) loans, current | 127,270 | 127,057
Loans receivable, gross | 128,392 | 129,432
Performing Financial Instruments [Member] | Pass [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 559 | 498
Performing (accruing) loans, current | 82,622 | 87,207
Loans receivable, gross | 83,181 | 87,705
Performing Financial Instruments [Member] | Pass [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 2,039 |
Performing (accruing) loans, current | 35,509 | 47,619
Loans receivable, gross | 37,548 | 47,619
Performing Financial Instruments [Member] | Pass [Member] | Construction to Permanent Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Performing (accruing) loans, current | 6,608 | 6,858
Loans receivable, gross | 6,608 | 6,858
Performing Financial Instruments [Member] | Special Mention [Member] |  |
Performing (accruing) loans, past due | 1,519 | 2,650
Performing (accruing) loans, current | 9,989 | 9,317
Loans receivable, gross | 11,508 | 11,967
Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  | 1,121
Performing (accruing) loans, current | 9,989 | 9,317
Loans receivable, gross | 9,989 | 10,438
Performing Financial Instruments [Member] | Special Mention [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 1,519 | 1,529
Performing (accruing) loans, current |  |
Loans receivable, gross | 1,519 | 1,529
Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Performing (accruing) loans, current |  |
Loans receivable, gross |  |
Performing Financial Instruments [Member] | Substandard [Member] |  |
Performing (accruing) loans, past due | 11,505 | 2,669
Performing (accruing) loans, current | 1,000 | 1,371
Loans receivable, gross | 12,505 | 4,040
Performing Financial Instruments [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 2,705 | 1,688
Performing (accruing) loans, current | 1,000 | 1,371
Loans receivable, gross | 3,705 | 3,059
Performing Financial Instruments [Member] | Substandard [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Performing (accruing) loans, current |  |
Loans receivable, gross |  |
Performing Financial Instruments [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  | 981
Performing (accruing) loans, current |  |
Loans receivable, gross |  | 981
Performing Financial Instruments [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Performing (accruing) loans, current |  |
Loans receivable, gross |  |
Performing Financial Instruments [Member] | Substandard [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 8,800 |
Performing (accruing) loans, current |  |
Loans receivable, gross | 8,800 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] |  |
Performing (accruing) loans, past due | 2,081 | 1,566
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 19 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 1,640 | 1,068
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 293 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 129 | 498
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] |  |
Performing (accruing) loans, past due | 562 | 1,566
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 19 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 121 | 1,068
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 293 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 129 | 498
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction to Permanent Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] |  |
Performing (accruing) loans, past due | 1,519 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 1,519 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] |  |
Performing (accruing) loans, past due | 5,555 | 6,593
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 3,375 | 2,809
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 1,271 | 1,784
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 829 | 2,000
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 80 |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] |  |
Performing (accruing) loans, past due | 2,850 | 2,255
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 670 |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 1,271 | 255
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 829 | 2,000
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 80 |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction to Permanent Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] |  |
Performing (accruing) loans, past due |  | 2,650
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  | 1,121
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  | 1,529
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] |  |
Performing (accruing) loans, past due | 2,705 | 1,688
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 2,705 | 1,688
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] |  |
Performing (accruing) loans, past due | 11,189 | 1,356
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  | 1,356
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 350 |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 10,839 |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] |  |
Performing (accruing) loans, past due | 2,389 | 375
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  | 375
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 350 |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | 2,039 |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction to Permanent Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] |  |
Performing (accruing) loans, past due | 8,800 | 981
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Residential Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  | 981
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] |  |
Performing (accruing) loans, past due |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Construction Portfolio Segment [Member] |  |
Performing (accruing) loans, past due | $ 8,800 |

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