Note 14 - Subsequent Events	6 Months Ended
Jun. 30, 2025
Notes to Financial Statements
Subsequent Events [Text Block]	*14.* SUBSEQUENT EVENTS On July 17, 2025, our Board of Directors declared a cash dividend on our common stock in the amount of $0.38 per share that will be paid on September 17, 2025, to shareholders of record as of September 5, 2025. On July 22, 2025, we entered into a definitive merger agreement ("Merger Agreement") with Eastern Michigan Financial Corporation (“EFIN”), pursuant to which EFIN will merge with and into an acquisition subsidiary of Mercantile, with the acquisition subsidiary as the surviving corporation (the “Merger”). Following the Merger, Mercantile will operate for a period of time as a two-bank holding company. The newly acquired Eastern Michigan Bank will operate alongside Mercantile’s existing bank, Mercantile Bank, until the first quarter of 2027 at which time Mercantile plans to consolidate Eastern Michigan Bank into Mercantile Bank. Under the terms of the agreement, each outstanding share of EFIN’s common stock will be converted into the right to receive $32.32 in cash and 0.7116 shares of Mercantile common stock, for an aggregate transaction value of approximately $95.8 million based upon the closing price of Mercantile's common stock of $48.75 on July 21, 2025. The Merger Agreement has been approved by the boards of directors of each of Mercantile and EFIN. The parties anticipate that the Merger will close in the fourth quarter of 2025, subject to receiving approval of the Merger Agreement by EFIN’s shareholders and applicable regulatory agencies, and the fulfillment of other customary closing conditions.

Note 14 - Subsequent Events

6 Months Ended

Jun. 30, 2025

14. SUBSEQUENT EVENTS

On July 17, 2025, our Board of Directors declared a cash dividend on our common stock in the amount of $0.38 per share that will be paid on September 17, 2025, to shareholders of record as of September 5, 2025.

On July 22, 2025, we entered into a definitive merger agreement ("Merger Agreement") with Eastern Michigan Financial Corporation (“EFIN”), pursuant to which EFIN will merge with and into an acquisition subsidiary of Mercantile, with the acquisition subsidiary as the surviving corporation (the “Merger”). Following the Merger, Mercantile will operate for a period of time as a two-bank holding company. The newly acquired Eastern Michigan Bank will operate alongside Mercantile’s existing bank, Mercantile Bank, until the first quarter of 2027 at which time Mercantile plans to consolidate Eastern Michigan Bank into Mercantile Bank.

Under the terms of the agreement, each outstanding share of EFIN’s common stock will be converted into the right to receive $32.32 in cash and 0.7116 shares of Mercantile common stock, for an aggregate transaction value of approximately $95.8 million based upon the closing price of Mercantile's common stock of $48.75 on July 21, 2025.

The Merger Agreement has been approved by the boards of directors of each of Mercantile and EFIN. The parties anticipate that the Merger will close in the fourth quarter of 2025, subject to receiving approval of the Merger Agreement by EFIN’s shareholders and applicable regulatory agencies, and the fulfillment of other customary closing conditions.