4. Trademarks and Other Intangibles

Trademarks and other intangibles, net consist of the following:


	Weighted
	Average	December 31, 2020
	Amortization	Gross Carrying		Accumulated		Net Carrying
($ in thousands)	Period	Amount		Amortization		Amount
Trademarks (indefinite-lived)	n/a	$	44,500	$	—	$	44,500
Trademarks (finite-lived)	15 years		21,613		6,867		14,746
Trademarks (finite-lived)	18 years		38,194		4,192		34,002
Other intellectual property	7 years		762		537		225
Copyrights and other intellectual property	10 years		190		128		62
Total		$	105,259	$	11,724	$	93,535


	Weighted
	Average	December 31, 2019
	Amortization	Gross Carrying		Accumulated		Net Carrying
($ in thousands)	Period	Amount		Amortization		Amount
Trademarks (indefinite-lived)	n/a	$	62,900	$	—	$	62,900
Trademarks (finite-lived)	15 years		16,213		4,560		11,653
Trademarks (finite-lived)	18 years		38,194		2,067		36,127
Other intellectual property	7 years		762		428		334
Copyrights and other intellectual property	10 years		190		109		81
Total		$	118,259	$	7,164	$	111,095

During the year ended December 31, 2020, the Company recorded a non-cash impairment charge of $13.0 million related to the Ripka Brand trademarks, driven by delays and uncertainty in implementing the brick-and-mortar retail store strategy for a portion of the brand, primarily as a result of the novel coronavirus disease pandemic. During the year ended December 31, 2019, the Company recorded a non-cash impairment charge of $6.2 million related to the Ripka Brand trademarks, driven by the timing of the continued transition from a licensing model to a wholesale and direct-to-consumer model. No other intangible asset impairment charges were recorded for the years ended December 31, 2020 and 2019.

Amortization expense for intangible assets for the years ended December 31, 2020 and 2019 was approximately $4.6 million and $3.2 million, respectively.

Effective January 1, 2020, the Company determined that the Ripka Brand, inclusive of all its trademarks, has a finite life of 15 years, and is amortized on a straight-line basis accordingly. Prior to January 1, 2020, the Ripka Brand trademarks were considered indefinite-lived assets.

The trademarks of the Isaac Mizrahi Brand have been determined to have indefinite useful lives and accordingly, no amortization has been recorded for those intangible assets.

Estimated future amortization expense related to finite-lived intangible assets over the remaining useful lives is as follows:


($ in thousands)	Amortization
Year Ending December 31,	Expense
2021	$	3,632
2022		3,632
2023		3,632
2024		3,617
2025		3,613
Thereafter		30,909
Total	$	49,035