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Note 3 - Loans and Allowance for Loan Losses - Loans by Credit Quality Indicators (Details) - USD ($) | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Loans |  | $ 3,313,709,000 |  | $ 3,193,470,000 |
Commercial Portfolio Segment [Member] |  |  |  |  |
Loans |  | 2,842,359,000 |  | 2,793,962,000 |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |
Loans | [1] | 1,074,394,000 |  | 1,145,423,000 |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |  |
Loans |  | 38,380,000 |  | 55,055,000 |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |  |  |
Loans |  | 551,762,000 |  | 529,953,000 |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |  |  |
Loans |  | 998,697,000 |  | 917,436,000 |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |  |  |
Loans |  | 179,126,000 |  | 146,095,000 |
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |
Loans |  | 706,369,000 | [2] | 828,706,000 | [3]
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |  |
Loans |  | 23,336,000 | [2] | 22,547,000 | [3]
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |  |  |
Loans |  | 324,000,000 | [2] | 315,134,000 | [3]
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |  |  |
Loans |  | 450,779,000 | [2] | 396,700,000 | [3]
Grades 1-4 [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |  |  |
Loans |  | 104,531,000 | [2] | 91,711,000 | [3]
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |
Loans |  | 364,529,000 |  | 306,614,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |  |
Loans |  | 14,941,000 |  | 32,398,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |  |  |
Loans |  | 212,733,000 |  | 185,541,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |  |  |
Loans |  | 534,165,000 |  | 520,395,000 |
Grades 5-7 [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |  |  |
Loans |  | 74,439,000 |  | 54,111,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |
Loans |  | 3,496,000 |  | 10,103,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |  |
Loans |  | 103,000 |  | 110,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |  |  |
Loans |  | 15,029,000 |  | 29,278,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |  |  |
Loans |  | 13,753,000 |  | 341,000 |
Grades 8-9 [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |  |  |
Loans |  | $ 156,000 |  | $ 273,000 |
[1] | Includes $116 million and $365 million in loans originated under the Paycheck Protection Program for September 30, 2021 and December 31, 2020, respectively.
[2] | Included in Commercial and Industrial Loans Grades 1 – 4 are $116 million of loans originated under the Paycheck Protection Program.
[3] | Included in Commercial and Industrial Loans Grades 1 – 4 are $365 million of loans originated under the Paycheck Protection Program.

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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=124259787&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=123577603&loc=d3e5074-111524 + Details
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