The Company recorded $7.4 million of goodwill as a result of its acquisition of TPB in 2018. Goodwill impairment was neither indicated nor recorded during the years ended December 31, 2020 or 2019.

Goodwill is tested for impairment annually, or more often if circumstances warrant. If, as a result of impairment testing, it is determined that the implied fair value of goodwill is lower than its carrying amount, impairment is indicated, and goodwill must be written down to its implied fair value. Subsequent increases in goodwill value are not recognized in the consolidated financial statements. Goodwill totaled $7.4 million as of both December 31, 2020 and 2019.

Core deposit premiums are amortized over a seven-year period and are periodically evaluated, at least annually, as to the recoverability of their carrying value. Core deposit premiums of $2.0 million were recorded during 2018 as part of the TPB acquisition.

The Company’s goodwill and other intangibles (carrying basis and accumulated amortization) as of December 31, 2020 were as follows:

	December 31, 2020
	(Dollars in Thousands)
Goodwill	$	7,435
Core deposit intangible:
Gross carrying amount		2,048
Accumulated amortization		(1,073	)
Core deposit intangible, net		975
Total	$	8,410

The Company’s estimated remaining amortization expense on intangibles as of December 31, 2020 is as follows:

	Amortization Expense
	(Dollars in Thousands)
2021		341
2022		268
2023		195
2024		122
2025		49
Total	$	975

The net carrying amount of the Company’s core deposit premiums is not considered recoverable if it exceeds the sum of the undiscounted cash flows expected to result from use and eventual disposition. That assessment is based on the carrying amount of the intangible assets subject to amortization at the date on which it is tested for recoverability. Intangible assets subject to amortization are tested by the Company for recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable.