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Note 21 - Parent Company Only Financial Statements - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Nov. 30, 2020 | Sep. 14, 2020 | Feb. 12, 2019 | Nov. 30, 2020 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Net income |  |  |  |  | $ 18,271 | $ 17,344 | $ 13,739 | $ 11,228 | $ 15,891 | $ 15,095 | $ 13,504 | $ 12,918 | $ 60,582 | $ 57,408 | $ 43,120
Deferred income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (14,530) | 6,364 | 6,292
Accretion of acquisition fair value adjustments, net |  |  |  |  |  |  |  |  |  |  |  |  | (3,271) | (4,344) | (5,527)
Depreciation |  |  |  |  |  |  |  |  |  |  |  |  | 5,333 | 5,225 | 4,451
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  | 2,150 | 2,469 | 1,443
Loss on sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  | (158) | 12,286 |
Securities gains, net |  |  |  |  |  |  |  |  |  |  |  |  | (2,484) | 30 |
Goodwill impairment | $ 0 |  |  | $ 0 |  |  |  |  |  |  |  |  | 500 | 3,000 |
Loss on liability extinguishment, net |  |  |  |  |  |  |  |  |  |  | $ 50 |  | 3,907 | 436 |
Net increase in interest-bearing deposits at financial institutions |  |  |  |  |  |  |  |  |  |  |  |  | 61,295 | (69,984) | (14,508)
Purchases |  |  |  |  |  |  |  |  |  |  |  |  | (356,127) | (71,963) | (84,045)
Calls, maturities and redemptions |  |  |  |  |  |  |  |  |  |  |  |  | 53,007 | 25,193 | 23,931
Sales |  |  |  |  |  |  |  |  |  |  |  |  | 38,562 | 30,055 | 1,938
Net cash received in dissolution of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  | (154) | 42,587 |
Net cash paid for acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (5,183)
Purchase of premises and equipment |  |  |  |  |  |  |  |  |  |  |  |  | (4,268) | (12,429) | (11,457)
Net cash provided by (used in) investing activities |  |  |  |  |  |  |  |  |  |  |  |  | (704,482) | (308,664) | (333,648)
Proceeds from other borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,000
Paydown of revolving line of credit |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,000 |
Prepayments |  |  |  |  |  |  |  |  |  |  |  |  |  | (46,313) |
Calls, maturities and scheduled principal payments |  |  |  |  |  |  |  |  |  |  |  |  |  | (11,937) | (12,550)
Proceeds from subordinated notes |  | $ 50,000 | $ 63,400 |  |  |  |  |  |  |  |  |  | 50,000 | 63,393 |
Proceeds from issuance of common stock, net |  |  |  |  |  |  |  |  |  |  |  |  | 1,360 | 1,926 | 1,279
Repurchase and cancellation of shares |  |  |  |  |  |  |  |  |  |  |  |  | (3,779) |  |
Net cash provided by (used in) financing activities |  |  |  |  |  |  |  |  |  |  |  |  | 577,380 | 222,901 | 279,178
Net increase (decrease) in cash and due from banks |  |  |  |  |  |  |  |  |  |  |  |  | (14,925) | (9,269) | 9,801
Parent Company [Member] | Reportable Legal Entities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | 60,582 | 57,408 | 43,120
Deferred income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 6,909 | 2,498 | 1,292
Accretion of acquisition fair value adjustments, net |  |  |  |  |  |  |  |  |  |  |  |  | 378 | 305 | 183
Depreciation |  |  |  |  |  |  |  |  |  |  |  |  | 454 | 327 | 249
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  | 2,150 | 2,469 | 1,443
Loss on sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  | (158) |  |
Goodwill impairment |  |  |  |  |  |  |  |  |  |  |  |  | 500 | 3,000 |
Decrease (increase) in other assets |  |  |  |  |  |  |  |  |  |  |  |  | 1,663 | (2,472) | 940
Increase (decrease) in other liabilities |  |  |  |  |  |  |  |  |  |  |  |  | (14,966) | 7,814 | (7,226)
Net cash provided by (used in) operating activities |  |  |  |  |  |  |  |  |  |  |  |  | (21,495) | 39,644 | 19,791
Net increase in interest-bearing deposits at financial institutions |  |  |  |  |  |  |  |  |  |  |  |  | (1,599) | (4,600) | (1,000)
Net cash received in dissolution of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  | 8,450 |  |
Net cash paid for acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (5,183)
Net cash received in sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  | 195 |  |
Purchase of premises and equipment |  |  |  |  |  |  |  |  |  |  |  |  | (272) | (2,861) | (2,257)
Net cash provided by (used in) investing activities |  |  |  |  |  |  |  |  |  |  |  |  | 6,774 | (16,161) | (11,940)
Proceeds from other borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,000
Paydown of revolving line of credit |  |  |  |  |  |  |  |  |  |  |  |  |  | (9,000) |
Prepayments |  |  |  |  |  |  |  |  |  |  |  |  |  | (21,313) |
Calls, maturities and scheduled principal payments |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,799) | (12,550)
Proceeds from subordinated notes |  |  |  |  |  |  |  |  |  |  |  |  | 50,000 | 63,393 |
Payment of cash dividends on common and preferred stock |  |  |  |  |  |  |  |  |  |  |  |  | (3,779) | (3,767) | (3,300)
Proceeds from issuance of common stock, net |  |  |  |  |  |  |  |  |  |  |  |  | 1,360 | 1,926 | 1,279
Repurchase and cancellation of shares |  |  |  |  |  |  |  |  |  |  |  |  | (3,779) |  |
Net cash provided by (used in) financing activities |  |  |  |  |  |  |  |  |  |  |  |  | 43,802 | 29,440 | (5,571)
Net increase (decrease) in cash and due from banks |  |  |  |  |  |  |  |  |  |  |  |  | 29,081 | 52,923 | 2,280
Cash and due from banks, beginning |  |  |  |  |  |  |  | $ 59,529 |  |  |  | $ 6,606 | 59,529 | 6,606 | 4,326
Cash and due from banks, ending |  |  |  |  | $ 88,610 |  |  |  | $ 59,529 |  |  |  | 88,610 | 59,529 | 6,606
Parent Company [Member] | Reportable Legal Entities [Member] | Bank Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings of bank subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | (79,624) | (69,966) | (55,209)
Parent Company [Member] | Reportable Legal Entities [Member] | Non-bank Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings of bank subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 261 | (6,797) | 436
Distributions from bank subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | $ 40 | 45,058 | 63
Parent Company [Member] | Reportable Legal Entities [Member] | Bank Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital infusion to subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  | (8,600) | (3,500)
Parent Company [Member] | Reportable Legal Entities [Member] | Bank Subsidiaries [Member] | Bank Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributions from bank subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 34,500
Parent Company [Member] | Reportable Legal Entities [Member] | Non-bank Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital infusion to subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (100) |

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