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Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Impaired Loans - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014
With no related allowance recorded: |  |  |  |  |
With no related allowance recorded - recorded investment | $ 11,938,000 |  | $ 11,938,000 |  | $ 11,717,000
With no related allowance recorded - unpaid principal balance | 13,272,000 |  | 13,272,000 |  | 13,511,000
With no related allowance recorded - average recorded investment | 11,968,000 | $ 14,442,000 | 12,172,000 | $ 14,293,000 |
With no related allowance recorded - interest income recognized | 131,000 | 123,000 | 260,000 | 236,000 |
With an allowance recorded: |  |  |  |  |
With related allowance recorded - recorded investment | 0 |  | 0 |  | 7,000
With related allowance recorded - unpaid principal balance |  |  |  |  | 7,000
With related allowance recorded - Related allowance |  |  |  |  | 7,000
With related allowance recorded - average recorded investment |  | 7,665,000 | 1,000 | 7,402,000 |
Impaired loans | 11,938,000 |  | 11,938,000 |  | 11,724,000
Unpaid principal balance | 13,272,000 |  | 13,272,000 |  | 13,518,000
Related allowance |  |  |  |  | 7,000
Average recorded investment | 11,968,000 | 22,107,000 | 12,173,000 | 21,695,000 |
Interest income recognized | 131,000 | 123,000 | 260,000 | 236,000 |
Commercial Portfolio Segment [Member] |  |  |  |  |
With no related allowance recorded: |  |  |  |  |
With no related allowance recorded - recorded investment |  |  |  |  | 2,000
With no related allowance recorded - unpaid principal balance | 98,000 |  | 98,000 |  | 104,000
With no related allowance recorded - average recorded investment |  | 436,000 | 1,000 | 219,000 |
With an allowance recorded: |  |  |  |  |
With related allowance recorded - average recorded investment |  | 6,017,000 |  | 6,047,000 |
Impaired loans |  |  |  |  | 2,000
Unpaid principal balance | 98,000 |  | 98,000 |  | 104,000
Average recorded investment |  | 6,453,000 | 1,000 | 6,266,000 |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
With no related allowance recorded: |  |  |  |  |
With no related allowance recorded - recorded investment | 8,002,000 |  | 8,002,000 |  | 7,398,000
With no related allowance recorded - unpaid principal balance | 8,836,000 |  | 8,836,000 |  | 8,249,000
With no related allowance recorded - average recorded investment | 8,025,000 | 8,661,000 | 8,160,000 | 8,301,000 |
With no related allowance recorded - interest income recognized | 94,000 | 86,000 | 188,000 | 157,000 |
With an allowance recorded: |  |  |  |  |
With related allowance recorded - average recorded investment |  | 1,091,000 |  | 625,000 |
Impaired loans | 8,002,000 |  | 8,002,000 |  | 7,398,000
Unpaid principal balance | 8,836,000 |  | 8,836,000 |  | 8,249,000
Average recorded investment | 8,025,000 | 9,752,000 | 8,160,000 | 8,926,000 |
Interest income recognized | 94,000 | 86,000 | 188,000 | 157,000 |
Construction Portfolio Segment [Member] |  |  |  |  |
With no related allowance recorded: |  |  |  |  |
With no related allowance recorded - unpaid principal balance | 287,000 |  | 287,000 |  | 732,000
With no related allowance recorded - average recorded investment |  |  |  | 397,000 |
With an allowance recorded: |  |  |  |  |
With related allowance recorded - average recorded investment |  | 173,000 |  | 217,000 |
Unpaid principal balance | 287,000 |  | 287,000 |  | 732,000
Average recorded investment |  | 173,000 |  | 614,000 |
Residential Portfolio Segment [Member] |  |  |  |  |
With no related allowance recorded: |  |  |  |  |
With no related allowance recorded - recorded investment | 3,386,000 |  | 3,386,000 |  | 3,764,000
With no related allowance recorded - unpaid principal balance | 3,414,000 |  | 3,414,000 |  | 3,793,000
With no related allowance recorded - average recorded investment | 3,392,000 | 4,761,000 | 3,459,000 | 4,791,000 |
With no related allowance recorded - interest income recognized | 32,000 | 32,000 | 63,000 | 65,000 |
With an allowance recorded: |  |  |  |  |
With related allowance recorded - average recorded investment |  | 381,000 |  | 511,000 |
Impaired loans | 3,386,000 |  | 3,386,000 |  | 3,764,000
Unpaid principal balance | 3,414,000 |  | 3,414,000 |  | 3,793,000
Average recorded investment | 3,392,000 | 5,142,000 | 3,459,000 | 5,302,000 |
Interest income recognized | 32,000 | 32,000 | 63,000 | 65,000 |
Consumer Portfolio Segment [Member] |  |  |  |  |
With no related allowance recorded: |  |  |  |  |
With no related allowance recorded - recorded investment | 550,000 |  | 550,000 |  | 553,000
With no related allowance recorded - unpaid principal balance | 637,000 |  | 637,000 |  | 633,000
With no related allowance recorded - average recorded investment | 551,000 | 584,000 | 552,000 | 585,000 |
With no related allowance recorded - interest income recognized | 5,000 | 5,000 | 9,000 | 14,000 |
With an allowance recorded: |  |  |  |  |
With related allowance recorded - recorded investment |  |  |  |  | 7,000
With related allowance recorded - unpaid principal balance |  |  |  |  | 7,000
With related allowance recorded - Related allowance |  |  |  |  | 7,000
With related allowance recorded - average recorded investment |  | 3,000 | 1,000 | 2,000 |
Impaired loans | 550,000 |  | 550,000 |  | 560,000
Unpaid principal balance | 637,000 |  | 637,000 |  | 640,000
Related allowance |  |  |  |  | $ 7,000
Average recorded investment | 551,000 | 587,000 | 553,000 | 587,000 |
Interest income recognized | $ 5,000 | $ 5,000 | $ 9,000 | $ 14,000 |

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