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Note 21 - Parent Company Financial Information - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Net income | $ 11,784 | $ 14,640 | $ 9,814 | $ 11,782 | $ 12,583 | $ 13,351 | $ 11,213 | $ 9,515 | $ 48,020 | $ 46,662 | $ 51,168
Decrease in other operating activities |  |  |  |  |  |  |  |  | 4,233 | 3,671 | 1,300
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 61,828 | 59,024 | 48,215
Investing activities |  |  |  |  |  |  |  |  |  |  |
Payments to acquire securities available for sale |  |  |  |  |  |  |  |  | (74,103) | (269,337) | (22,394)
Net cash (used) provided by investing activities |  |  |  |  |  |  |  |  | 288,662 | (536,779) | 35,350
Financing activities |  |  |  |  |  |  |  |  |  |  |
Payments for repurchase of common stock |  |  |  |  |  |  |  |  | 23,038 | 21,311 | 28,882
Payments of common stock dividends |  |  |  |  |  |  |  |  | (21,089) | (18,515) | (18,059)
Net cash (used) provided by financing activities |  |  |  |  |  |  |  |  | (404,916) | (28,838) | 137,313
Cash and cash equivalents increase (decrease) |  |  |  |  |  |  |  |  | (54,426) | (506,593) | 220,878
Cash and cash equivalents at beginning of period |  |  |  | 170,846 |  |  |  | 677,439 | 170,846 | 677,439 | 456,561
Cash and cash equivalents at end of period | 116,420 |  |  |  | 170,846 |  |  |  | 116,420 | 170,846 | 677,439
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 48,020 | 46,662 | 51,168
Decrease in other operating activities |  |  |  |  |  |  |  |  | (3,275) | 8,442 | 253
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 44,745 | 55,104 | 51,421
Investing activities |  |  |  |  |  |  |  |  |  |  |
Payments to acquire securities available for sale |  |  |  |  |  |  |  |  | (69,469) | (19,372) | 0
Proceeds from maturities, calls, sales of investment securities |  |  |  |  |  |  |  |  | 65,250 | 11,807 | (9,919)
Dividends in excess of undistributed net income of subsidiaries |  |  |  |  |  |  |  |  | 0 | 0 | 1,305
Net cash (used) provided by investing activities |  |  |  |  |  |  |  |  | (4,219) | (7,565) | (8,614)
Financing activities |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock |  |  |  |  |  |  |  |  | 91 | 172 | 0
Payments for repurchase of common stock |  |  |  |  |  |  |  |  | (23,038) | (21,311) | (28,882)
Payments of common stock dividends |  |  |  |  |  |  |  |  | (21,089) | (18,515) | (18,059)
Net change in other financing activities |  |  |  |  |  |  |  |  | 1,203 | 1,375 | 1,773
Net cash (used) provided by financing activities |  |  |  |  |  |  |  |  | (42,833) | (38,279) | (45,168)
Cash and cash equivalents increase (decrease) |  |  |  |  |  |  |  |  | (2,307) | 9,260 | (2,361)
Cash and cash equivalents at beginning of period |  |  |  | $ 16,988 |  |  |  | $ 7,728 | 16,988 | 7,728 | 10,089
Cash and cash equivalents at end of period | $ 14,681 |  |  |  | $ 16,988 |  |  |  | $ 14,681 | $ 16,988 | $ 7,728

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- Definition The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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