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Note 1 - Business Description (Details Textual) $ in Thousands | 102 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 10, 2020 | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2018 USD ($)
Assets, Total |  | $ 3,359,576 |  | $ 2,788,535 |  |  |
Loans Held for Investment and Held for Sale, Gross |  | 2,800,000 |  |  |  |  |
Deposits, Total |  | 2,611,748 |  | 2,248,938 |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance |  | $ 421,416 | $ 414,025 | $ 407,690 | $ 398,841 | $ 393,820 | $ 374,621
Number of Businesses Acquired | 6 |  |  |  |  |  |
PGB Holdings Inc. [Member] |  |  |  |  |  |  |
Number of Branches | 3 |  |  |  |  |  |
PGB Holdings Inc. [Member] | ILLINOIS |  |  |  |  |  |  |
Number of Branches | 3 |  |  |  |  |  |

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