GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 12,936		$ 12,936		$ 12,936
Gross carrying amount core deposit intangible	9,100		9,100		9,100
Accumulated amortization core deposit intangible	8,000		8,000		7,600
Carrying amount core deposit intangible	1,056		1,056		$ 1,500
Amortization of intangible assets	$ 144	$ 183	$ 431	$ 548

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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+ Details

- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

+ References

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+ Details

Amalgamated Financial Corp. 10-Q