GOODWILL AND INTANGIBLE ASSETS:

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS:

The Corporation completed its annual impairment testing of goodwill during the fourth quarter of 2020 and 2019. Management does not believe any amount of goodwill is impaired.

Intangible assets subject to amortization at December 31, 2020 and 2019 are as follows:  

	2020				2019
	Gross		Accumulated		Gross		Accumulated
(Dollar amounts in thousands)	Amount		Amortization		Amount		Amortization
Core deposit intangible	$	21,205	$	12,233	$	21,205	$	10,562
	$	21,205	$	12,233	$	21,205	$	10,562

 Aggregate amortization expense was $1.7 million, $923 thousand and $433 thousand for 2020, 2019 and 2018, respectively.

Estimated amortization expense for the next five years is as follows:

	In thousands
2021	$	1,615
2022	1,390
2023	1,127
2024	838
2025	711