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Note 21 - Mercantile Bank Corporation (Parent Company Only) Condensed Financial Statements - Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Cash flows from operating activities |  |  |
Net income | $ 82,217 | $ 61,063 | $ 59,021
Adjustments to reconcile net income to net cash from operating activities: |  |  |
Stock-based compensation expense | 3,384 | 3,377 | 3,784
Stock grants to directors for retainer fee | 350 | 359 | 344
Other assets | (30,189) | (437) | (12,655)
Accrued interest and other liabilities | 14,252 | 32,524 | (3,513)
Cash flows from investing activities |  |  |
Net cash for investing activities | (395,932) | (554,999) | (495,507)
Cash flows from financing activities |  |  |
Proceeds from stock option exercises, net of cashless exercises | 0 | 36 | 50
Employee stock purchase plan | 45 | 45 | 48
Dividend reinvestment plan | 891 | 867 | 877
Net proceeds from subordinated notes issuance | 0 | 14,645 | 73,635
Repurchases of common stock | 0 | 0 | (21,380)
Payment of cash dividends to common shareholders | (21,004) | (19,602) | (18,524)
Net cash (for) from financing activities | 363,080 | (443,251) | 780,088
Net change in cash and cash equivalents | 33,761 | (878,388) | 349,154
Cash and cash equivalents at beginning of period | 96,772 | 975,160 | 626,006
Cash and cash equivalents at end of period | 130,533 | 96,772 | 975,160
Parent Company [Member] |  |  |
Cash flows from operating activities |  |  |
Net income | 82,217 | 61,063 | 59,021
Adjustments to reconcile net income to net cash from operating activities: |  |  |
Equity in undistributed net income of subsidiary | (66,464) | (44,221) | (26,075)
Stock-based compensation expense | 3,384 | 3,377 | 3,784
Stock grants to directors for retainer fee | 350 | 359 | 344
Other assets | (128) | 858 | 49
Accrued interest and other liabilities | 1,045 | 1,636 | (5)
Net cash from operating activities | 20,404 | 23,072 | 37,118
Cash flows from investing activities |  |  |
Net capital investment into subsidiaries | 0 | (15,000) | (70,000)
Net cash for investing activities | 0 | (15,000) | (70,000)
Cash flows from financing activities |  |  |
Proceeds from stock option exercises, net of cashless exercises | 0 | 36 | 50
Employee stock purchase plan | 45 | 45 | 48
Dividend reinvestment plan | 891 | 867 | 877
Net proceeds from subordinated notes issuance | 0 | 14,645 | 73,635
Repurchases of common stock | 0 | 0 | (21,380)
Payment of cash dividends to common shareholders | (21,004) | (19,602) | (18,524)
Net cash (for) from financing activities | (20,068) | (4,009) | 34,706
Net change in cash and cash equivalents | 336 | 4,063 | 1,824
Cash and cash equivalents at beginning of period | 18,633 | 14,570 | 12,746
Cash and cash equivalents at end of period | $ 18,969 | $ 18,633 | $ 14,570

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