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Note 4 - Loans and Allowance for Loan Losses - Loans by Credit Quality Indicators (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Loans | $ 2,856,667,000 | $ 2,753,085,000 |
Originated Loan [Member] |  |  |
Loans | 2,614,725,000 | 2,452,446,000 | $ 2,169,957,000
Acquired Loan [Member] |  |  |
Loans | 241,942,000 | 300,639,000 |
Commercial Portfolio Segment [Member] |  |  |
Loans | 2,441,544,000 | 2,360,106,000 |
Commercial Portfolio Segment [Member] | Originated Loan [Member] |  |  |
Loans | 2,271,417,000 | 2,151,998,000 | $ 1,934,228,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] |  |  |
Loans | 170,127,000 | 208,108,000 |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |
Loans | 846,551,000 | 822,723,000 |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Originated Loan [Member] |  |  |
Loans | 799,421,000 | 768,698,000 |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Acquired Loan [Member] |  |  |
Loans | 47,130,000 | 54,025,000 |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Loans | 56,119,000 | 44,885,000 |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Originated Loan [Member] |  |  |
Loans | 52,097,000 | 39,950,000 |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 4,022,000 | 4,935,000 |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Loans | 579,003,000 | 548,619,000 |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |
Loans | 542,561,000 | 500,188,000 |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 36,442,000 | 48,431,000 |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Loans | 835,346,000 | 816,282,000 |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |
Loans | 776,994,000 | 745,127,000 |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 58,352,000 | 71,155,000 |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Loans | 124,525,000 | 127,597,000 |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Originated Loan [Member] |  |  |
Loans | 100,344,000 | 98,035,000 |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 24,181,000 | 29,562,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Originated Loan [Member] |  |  |
Loans | 491,385,000 | 508,611,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Acquired Loan [Member] |  |  |
Loans | 30,535,000 | 34,678,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Originated Loan [Member] |  |  |
Loans | 25,037,000 | 28,170,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 1,028,000 | 1,246,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |
Loans | 333,051,000 | 325,459,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 18,620,000 | 21,595,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |
Loans | 515,914,000 | 526,445,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 47,173,000 | 54,401,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Originated Loan [Member] |  |  |
Loans | 69,474,000 | 75,051,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 15,678,000 | 16,050,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Originated Loan [Member] |  |  |
Loans | 293,678,000 | 238,942,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Acquired Loan [Member] |  |  |
Loans | 16,146,000 | 19,122,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Originated Loan [Member] |  |  |
Loans | 26,975,000 | 11,686,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 2,741,000 | 3,431,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |
Loans | 203,318,000 | 163,455,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 17,662,000 | 25,485,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |
Loans | 261,080,000 | 218,682,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 11,044,000 | 16,687,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Originated Loan [Member] |  |  |
Loans | 30,727,000 | 22,798,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 8,476,000 | 13,460,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Originated Loan [Member] |  |  |
Loans | 14,358,000 | 21,145,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Acquired Loan [Member] |  |  |
Loans | 449,000 | 225,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Originated Loan [Member] |  |  |
Loans | 85,000 | 94,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 253,000 | 258,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |
Loans | 6,192,000 | 11,274,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 160,000 | 1,351,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |
Loans | 0 | 0 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |
Loans | 135,000 | 67,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Originated Loan [Member] |  |  |
Loans | 143,000 | 186,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Acquired Loan [Member] |  |  |
Loans | $ 27,000 | $ 52,000 |

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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524 + Details
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