GOODWILL AND INTANGIBLE ASSETS: (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets Subject to Amortization

Intangible assets subject to amortization at December 31, 2019 and 2018 are as follows:  

	2019				2018
	Gross		Accumulated		Gross		Accumulated
(Dollar amounts in thousands)	Amount		Amortization		Amount		Amortization
Core deposit intangible	$	21,205	$	10,562	$	10,836	$	9,639
	$	21,205	$	10,562	$	10,836	$	9,639

Estimated Amortization Expense

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

	In thousands
2020	$	1,671
2021	1,615
2022	1,390
2023	1,127
2024	848