EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Earnings Per Share [Abstract]
Net income	$ 9,199	$ 6,023
(Less) allocation of earnings & dividends to participating securities	(117)	(75)
Net income available to common shareholders	$ 9,082	$ 5,948
Weighted average common shares outstanding, basic (in shares)	4,824,821	4,790,880
Weighted average common shares outstanding, diluted (in shares)	4,824,821	4,790,880
(Less) participating securities (in shares)	(61,316)	(59,599)
Weighted average number of shares outstanding used in the calculation of basic earnings per share (in shares)	4,763,505	4,731,281
Basic earnings per common share (in dollars per share)	$ 1.91	$ 1.26

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

- Definition

Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

+ References

+ Details

CHEMUNG FINANCIAL CORP 10-Q