The carrying amount of goodwill totaled $67.1 million as of both September 30, 2023 and December 31, 2022. The Company performs a goodwill impairment test on an annual basis as of October 1st or more frequently if events and circumstances warrant.


	Banking		All Other (1)		Total
Balance, December 31, 2022	$	48,536	$	18,535	$	67,071
Acquisitions		—		—		—
Balance, September 30, 2023	$	48,536	$	18,535	$	67,071

(1) All Other includes the SDN and Courier Capital reporting units.

Goodwill is not amortized but, instead, is subject to impairment tests on at least an annual basis, and more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. Based on the capital markets downturn for bank stocks due to macroeconomic pressures, including inflation, along with volatility in the banking industry as a result of recent bank failures during the first half of 2023, a goodwill impairment test was performed for the Banking reporting unit in the second quarter of 2023. Based on this quantitative assessment, the Company concluded that goodwill was not impaired. In the third quarter of 2023, the Company performed a qualitative assessment of its goodwill. Based on this assessment, the Company concluded that it was not more likely than not that goodwill was impaired as of September 30, 2023. Therefore, no quantitative assessment was deemed necessary at September 30, 2023.

The Company has other intangible assets that are amortized, consisting of core deposit intangibles and other intangibles (primarily related to customer relationships). Gross carrying amount, accumulated amortization and net book value, were as follows (in thousands):


	September 30,			December 31,
	2023			2022
Core deposit intangibles:
Gross carrying amount	$	2,042		$	2,042
Accumulated amortization		(2,042	)		(2,042	)
Net book value	$	—		$	—

Other intangibles:
Gross carrying amount	$	14,545		$	14,545
Accumulated amortization		(8,891	)		(8,202	)
Net book value	$	5,654		$	6,343

Amortization expense for total other intangible assets was $225 thousand and $689 thousand for the three and nine months ended September 30, 2023, and $244 thousand and $747 thousand for the three and nine months ended September 30, 2022. As of September 30, 2023, the estimated amortization expense of other intangible assets for the remainder of 2023 and each of the next five years is as follows (in thousands):


2023 (remainder of year)	$	221
2024		838
2025		766
2026		694
2027		623
2028		551
Thereafter		1,961
Total	$	5,654