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Note 3 - Loans and Allowance for Loan Losses - Impaired Loans (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | $ 2,147,000 |  | $ 2,147,000 |  | $ 1,509,000
With no related allowance recorded, principal balance | 2,146,000 |  | 2,146,000 |  | 1,501,000
With no related allowance recorded, average recorded principal balance | 2,017,000 | $ 1,930,000 | 1,845,000 | $ 1,674,000 |
With an allowance recorded, unpaid principal balance | 249,000 |  | 249,000 |  | 352,000
With an allowance recorded, principal balance | 199,000 |  | 199,000 |  | 305,000
Related allowance | 47,000 |  | 47,000 |  | 165,000
With an allowance recorded, average recorded principal balance | 217,000 | 2,812,000 | 246,000 | 3,617,000 |
With no related allowance recorded, average recorded principal balance | 2,017,000 | 1,930,000 | 1,845,000 | 1,674,000 |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 1,694,000 |  | 1,694,000 |  | 1,528,000
With no related allowance recorded, principal balance | 1,681,000 |  | 1,681,000 |  | 1,494,000
With no related allowance recorded, average recorded principal balance | 1,556,000 | 1,244,000 | 1,535,000 | 1,356,000 |
With an allowance recorded, unpaid principal balance | 356,000 |  | 356,000 |  | 383,000
With an allowance recorded, principal balance | 356,000 |  | 356,000 |  | 376,000
Related allowance | 101,000 |  | 101,000 |  | 102,000
With an allowance recorded, average recorded principal balance | 367,000 | 97,000 | 370,000 | 65,000 |
With no related allowance recorded, average recorded principal balance | 1,556,000 | 1,244,000 | 1,535,000 | 1,356,000 |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 0 |  | 0 |  | 0
With no related allowance recorded, principal balance | 0 |  | 0 |  | 0
With no related allowance recorded, average recorded principal balance | 0 | 98,000 | 0 | 135,000 |
With an allowance recorded, unpaid principal balance | 2,002,000 |  | 2,002,000 |  | 2,017,000
With an allowance recorded, principal balance | 1,625,000 |  | 1,625,000 |  | 1,655,000
Related allowance | 72,000 |  | 72,000 |  | 245,000
With an allowance recorded, average recorded principal balance | 1,633,000 | 2,092,000 | 1,640,000 | 2,061,000 |
With no related allowance recorded, average recorded principal balance | 0 | 98,000 | 0 | 135,000 |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 0 |  | 0 |  | 0
With no related allowance recorded, principal balance | 0 |  | 0 |  | 0
With no related allowance recorded, average recorded principal balance | 0 | 0 | 0 | 0 |
With an allowance recorded, unpaid principal balance | 0 |  | 0 |  | 0
With an allowance recorded, principal balance | 0 |  | 0 |  | 0
Related allowance | 0 |  | 0 |  | 0
With an allowance recorded, average recorded principal balance | 0 | 0 | 0 | 0 |
With no related allowance recorded, average recorded principal balance | 0 | 0 | 0 | 0 |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 348,000 |  | 348,000 |  | 712,000
With no related allowance recorded, principal balance | 251,000 |  | 251,000 |  | 505,000
With no related allowance recorded, average recorded principal balance | 160,000 | 1,062,000 | 275,000 | 1,342,000 |
With an allowance recorded, unpaid principal balance | 5,930,000 |  | 5,930,000 |  | 5,867,000
With an allowance recorded, principal balance | 1,378,000 |  | 1,378,000 |  | 1,314,000
Related allowance | 235,000 |  | 235,000 |  | 242,000
With an allowance recorded, average recorded principal balance | 1,339,000 | 8,806,000 | 1,331,000 | 11,095,000 |
With no related allowance recorded, average recorded principal balance | 160,000 | 1,062,000 | 275,000 | 1,342,000 |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 1,314,000 |  | 1,314,000 |  | 2,233,000
With no related allowance recorded, principal balance | 1,300,000 |  | 1,300,000 |  | 1,952,000
With no related allowance recorded, average recorded principal balance | 1,485,000 | 317,000 | 1,640,000 | 249,000 |
With an allowance recorded, unpaid principal balance | 49,000 |  | 49,000 |  | 51,000
With an allowance recorded, principal balance | 49,000 |  | 49,000 |  | 51,000
Related allowance | 4,000 |  | 4,000 |  | 4,000
With an allowance recorded, average recorded principal balance | 50,000 | 1,256,000 | 50,000 | 1,338,000 |
With no related allowance recorded, average recorded principal balance | 1,485,000 | 317,000 | 1,640,000 | 249,000 |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 5,623,000 |  | 5,623,000 |  | 5,696,000
With no related allowance recorded, principal balance | 5,623,000 |  | 5,623,000 |  | 5,696,000
With no related allowance recorded, average recorded principal balance | 5,641,000 | 2,937,000 | 5,660,000 | 2,362,000 |
With an allowance recorded, unpaid principal balance | 4,704,000 |  | 4,704,000 |  | 4,841,000
With an allowance recorded, principal balance | 4,704,000 |  | 4,704,000 |  | 4,841,000
Related allowance | 180,000 |  | 180,000 |  | 201,000
With an allowance recorded, average recorded principal balance | 4,729,000 | 10,319,000 | 4,766,000 | 12,195,000 |
With no related allowance recorded, average recorded principal balance | 5,641,000 | 2,937,000 | 5,660,000 | 2,362,000 |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 811,000 |  | 811,000 |  | 880,000
With no related allowance recorded, principal balance | 811,000 |  | 811,000 |  | 880,000
With no related allowance recorded, average recorded principal balance | 792,000 | 427,000 | 821,000 | 393,000 |
With an allowance recorded, unpaid principal balance | 0 |  | 0 |  | 0
With an allowance recorded, principal balance | 0 |  | 0 |  | 0
Related allowance | 0 |  | 0 |  | 0
With an allowance recorded, average recorded principal balance | 0 | 0 | 0 | 0 |
With no related allowance recorded, average recorded principal balance | 792,000 | 427,000 | 821,000 | 393,000 |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residentia lRental Loan [Member] | Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 0 |  | 0 |  | 0
With no related allowance recorded, principal balance | 0 |  | 0 |  | 0
With no related allowance recorded, average recorded principal balance | 0 | 306,000 | 0 | 309,000 |
With an allowance recorded, unpaid principal balance | 979,000 |  | 979,000 |  | 1,028,000
With an allowance recorded, principal balance | 979,000 |  | 979,000 |  | 1,028,000
Related allowance | 293,000 |  | 293,000 |  | 365,000
With an allowance recorded, average recorded principal balance | 993,000 | 1,321,000 | 1,004,000 | 1,338,000 |
With no related allowance recorded, average recorded principal balance | 0 | 306,000 | 0 | 309,000 |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residentia lRental Loan [Member] | Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 295,000 |  | 295,000 |  | 452,000
With no related allowance recorded, principal balance | 295,000 |  | 295,000 |  | 404,000
With no related allowance recorded, average recorded principal balance | 289,000 | 2,037,000 | 327,000 | 1,520,000 |
With an allowance recorded, unpaid principal balance | 20,000 |  | 20,000 |  | 23,000
With an allowance recorded, principal balance | 20,000 |  | 20,000 |  | 23,000
Related allowance | 1,000 |  | 1,000 |  | 0
With an allowance recorded, average recorded principal balance | 20,000 | 28,000 | 21,000 | 19,000 |
With no related allowance recorded, average recorded principal balance | 289,000 | 2,037,000 | 327,000 | 1,520,000 |
Commercial Portfolio Segment [Member] | Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 8,118,000 |  | 8,118,000 |  | 7,917,000
With no related allowance recorded, principal balance | 8,020,000 |  | 8,020,000 |  | 7,702,000
With no related allowance recorded, average recorded principal balance | 7,818,000 | 6,333,000 | 7,780,000 | 5,822,000 |
With an allowance recorded, unpaid principal balance | 13,864,000 |  | 13,864,000 |  | 14,105,000
With an allowance recorded, principal balance | 8,885,000 |  | 8,885,000 |  | 9,143,000
Related allowance | 827,000 |  | 827,000 |  | 1,218,000
With an allowance recorded, average recorded principal balance | 8,911,000 | 25,350,000 | 8,987,000 | 30,306,000 |
Total, unpaid principal balance | 21,982,000 |  | 21,982,000 |  | 22,022,000
Total, principal balance | 16,905,000 |  | 16,905,000 |  | 16,845,000
Total, average recorded principal balance | 16,729,000 | 31,683,000 | 16,767,000 | 36,128,000 |
With no related allowance recorded, average recorded principal balance | 7,818,000 | 6,333,000 | 7,780,000 | 5,822,000 |
Commercial Portfolio Segment [Member] | Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 4,114,000 |  | 4,114,000 |  | 5,093,000
With no related allowance recorded, principal balance | 4,087,000 |  | 4,087,000 |  | 4,730,000
With no related allowance recorded, average recorded principal balance | 4,122,000 | 4,025,000 | 4,323,000 | 3,518,000 |
With an allowance recorded, unpaid principal balance | 425,000 |  | 425,000 |  | 457,000
With an allowance recorded, principal balance | 425,000 |  | 425,000 |  | 450,000
Related allowance | 106,000 |  | 106,000 |  | 106,000
With an allowance recorded, average recorded principal balance | 437,000 | 1,381,000 | 441,000 | 1,422,000 |
Total, unpaid principal balance | 4,539,000 |  | 4,539,000 |  | 5,550,000
Total, principal balance | 4,512,000 |  | 4,512,000 |  | 5,180,000
Total, average recorded principal balance | 4,559,000 | 5,406,000 | 4,764,000 | 4,940,000 |
With no related allowance recorded, average recorded principal balance | 4,122,000 | 4,025,000 | 4,323,000 | 3,518,000 |
Retail Portfolio Segment [Member] | Home Equity and Other [Member] | Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 129,000 |  | 129,000 |  | 14,000
With no related allowance recorded, principal balance | 120,000 |  | 120,000 |  | 5,000
With no related allowance recorded, average recorded principal balance | 65,000 | 189,000 | 45,000 | 190,000 |
With an allowance recorded, unpaid principal balance | 550,000 |  | 550,000 |  | 600,000
With an allowance recorded, principal balance | 512,000 |  | 512,000 |  | 562,000
Related allowance | 137,000 |  | 137,000 |  | 209,000
With an allowance recorded, average recorded principal balance | 491,000 | 165,000 | 515,000 | 138,000 |
With no related allowance recorded, average recorded principal balance | 65,000 | 189,000 | 45,000 | 190,000 |
Retail Portfolio Segment [Member] | Home Equity and Other [Member] | Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 367,000 |  | 367,000 |  | 471,000
With no related allowance recorded, principal balance | 365,000 |  | 365,000 |  | 310,000
With no related allowance recorded, average recorded principal balance | 321,000 | 365,000 | 317,000 | 456,000 |
With an allowance recorded, unpaid principal balance | 0 |  | 0 |  | 0
With an allowance recorded, principal balance | 0 |  | 0 |  | 0
Related allowance | 0 |  | 0 |  | 0
With an allowance recorded, average recorded principal balance | 0 | 0 | 0 | 0 |
With no related allowance recorded, average recorded principal balance | 321,000 | 365,000 | 317,000 | 456,000 |
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 1,324,000 |  | 1,324,000 |  | 1,328,000
With no related allowance recorded, principal balance | 668,000 |  | 668,000 |  | 657,000
With no related allowance recorded, average recorded principal balance | 621,000 | 615,000 | 633,000 | 597,000 |
With an allowance recorded, unpaid principal balance | 205,000 |  | 205,000 |  | 165,000
With an allowance recorded, principal balance | 163,000 |  | 163,000 |  | 128,000
Related allowance | 72,000 |  | 72,000 |  | 47,000
With an allowance recorded, average recorded principal balance | 145,000 | 217,000 | 139,000 | 811,000 |
With no related allowance recorded, average recorded principal balance | 621,000 | 615,000 | 633,000 | 597,000 |
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 1,305,000 |  | 1,305,000 |  | 1,804,000
With no related allowance recorded, principal balance | 1,305,000 |  | 1,305,000 |  | 1,548,000
With no related allowance recorded, average recorded principal balance | 1,290,000 | 801,000 | 1,376,000 | 823,000 |
With an allowance recorded, unpaid principal balance | 174,000 |  | 174,000 |  | 175,000
With an allowance recorded, principal balance | 174,000 |  | 174,000 |  | 175,000
Related allowance | 5,000 |  | 5,000 |  | 6,000
With an allowance recorded, average recorded principal balance | 87,000 | 283,000 | 116,000 | 189,000 |
With no related allowance recorded, average recorded principal balance | 1,290,000 | 801,000 | 1,376,000 | 823,000 |
Retail Portfolio Segment [Member] | Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 1,453,000 |  | 1,453,000 |  | 1,342,000
With no related allowance recorded, principal balance | 788,000 |  | 788,000 |  | 662,000
With no related allowance recorded, average recorded principal balance | 686,000 | 804,000 | 678,000 | 787,000 |
With an allowance recorded, unpaid principal balance | 755,000 |  | 755,000 |  | 765,000
With an allowance recorded, principal balance | 675,000 |  | 675,000 |  | 690,000
Related allowance | 209,000 |  | 209,000 |  | 256,000
With an allowance recorded, average recorded principal balance | 636,000 | 382,000 | 654,000 | 949,000 |
Total, unpaid principal balance | 2,208,000 |  | 2,208,000 |  | 2,107,000
Total, principal balance | 1,463,000 |  | 1,463,000 |  | 1,352,000
Total, average recorded principal balance | 1,322,000 | 1,186,000 | 1,332,000 | 1,736,000 |
With no related allowance recorded, average recorded principal balance | 686,000 | 804,000 | 678,000 | 787,000 |
Retail Portfolio Segment [Member] | Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 1,672,000 |  | 1,672,000 |  | 2,275,000
With no related allowance recorded, principal balance | 1,670,000 |  | 1,670,000 |  | 1,858,000
With no related allowance recorded, average recorded principal balance | 1,611,000 | 1,166,000 | 1,693,000 | 1,279,000 |
With an allowance recorded, unpaid principal balance | 174,000 |  | 174,000 |  | 175,000
With an allowance recorded, principal balance | 174,000 |  | 174,000 |  | 175,000
Related allowance | 5,000 |  | 5,000 |  | 6,000
With an allowance recorded, average recorded principal balance | 87,000 | 283,000 | 116,000 | 189,000 |
Total, unpaid principal balance | 1,846,000 |  | 1,846,000 |  | 2,450,000
Total, principal balance | 1,844,000 |  | 1,844,000 |  | 2,033,000
Total, average recorded principal balance | 1,698,000 | 1,449,000 | 1,809,000 | 1,468,000 |
With no related allowance recorded, average recorded principal balance | 1,611,000 | 1,166,000 | 1,693,000 | 1,279,000 |
Originated Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 9,571,000 |  | 9,571,000 |  | 9,259,000
With no related allowance recorded, principal balance | 8,808,000 |  | 8,808,000 |  | 8,364,000
With no related allowance recorded, average recorded principal balance | 8,504,000 | 7,137,000 | 8,458,000 | 6,609,000 |
With an allowance recorded, unpaid principal balance | 14,619,000 |  | 14,619,000 |  | 14,870,000
With an allowance recorded, principal balance | 9,560,000 |  | 9,560,000 |  | 9,833,000
Related allowance | 1,036,000 |  | 1,036,000 |  | 1,474,000
With an allowance recorded, average recorded principal balance | 9,547,000 | 25,732,000 | 9,641,000 | 31,255,000 |
Total, unpaid principal balance | 24,190,000 |  | 24,190,000 |  | 24,129,000
Total, principal balance | 18,368,000 |  | 18,368,000 |  | 18,197,000
Total, average recorded principal balance | 18,051,000 | 32,869,000 | 18,099,000 | 37,864,000 |
With no related allowance recorded, average recorded principal balance | 8,504,000 | 7,137,000 | 8,458,000 | 6,609,000 |
Acquired Loan [Member] |  |  |  |  |
With no related allowance recorded, unpaid principal balance | 5,786,000 |  | 5,786,000 |  | 7,368,000
With no related allowance recorded, principal balance | 5,757,000 |  | 5,757,000 |  | 6,588,000
With no related allowance recorded, average recorded principal balance | 5,733,000 | 5,191,000 | 6,016,000 | 4,797,000 |
With an allowance recorded, unpaid principal balance | 599,000 |  | 599,000 |  | 632,000
With an allowance recorded, principal balance | 599,000 |  | 599,000 |  | 625,000
Related allowance | 111,000 |  | 111,000 |  | 112,000
With an allowance recorded, average recorded principal balance | 524,000 | 1,664,000 | 557,000 | 1,611,000 |
Total, unpaid principal balance | 6,385,000 |  | 6,385,000 |  | 8,000,000
Total, principal balance | 6,356,000 |  | 6,356,000 |  | $ 7,213,000
Total, average recorded principal balance | 6,257,000 | 6,855,000 | 6,573,000 | 6,408,000 |
With no related allowance recorded, average recorded principal balance | $ 5,733,000 | $ 5,191,000 | $ 6,016,000 | $ 4,797,000 |

X
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