	November 2, 2019							February 2, 2019
(In thousands)	Gross Amount		Accumulated Amortization			Net Book Value		Gross Amount		Accumulated Amortization			Net Book Value
Amortizable trademarks	$	28,004		(20,379	)	$	7,625	$	27,899		(19,835	)	$	8,064
Indefinite lived trademarks		51,687		—			51,687		56,687		—			56,687
	$	79,691	$	(20,379	)	$	59,312	$	84,586	$	(19,835	)	$	64,751

The Hi-Tec Acquisition during Fiscal 2017 resulted in trademarks valued at $52.4 million that are classified as indefinite lived and not subjected to amortization. Other indefinite lived trademarks include certain Cherokee brand trademarks that were acquired in historical transactions. The Company's revenues from its Hi-Tec, Magnum and Interceptor brands, which were acquired in the Hi-Tec Acquisition, were significantly below previous forecasts for the three months ended November 2, 2019. (See Note 1 for further discussion.) This was identified as an interim impairment indicator for the related indefinite lived trademarks during the preparation of the Company’s interim financial statements, and management performed an interim impairment test based on updated cash flow projections and discounted cash flows based on estimated weighted average costs of capital (income approach). The Company determined that the fair values of its Hi-Tec and Magnum trademarks were not in excess of their carrying values, and as a result, an impairment charge of $5.0 million was recorded during the three months ended November 2, 2019 to adjust these trademarks to their estimated fair value. The fair value of the Company’s Interceptor brand was in excess of its carrying value, so no impairment charge was necessary based on the interim test. However, the Company believes that increased tariffs and global trade wars have negatively impacted the competitive and economic environment in which Interceptor operates, and an indefinite life is no longer supported. Accordingly, the Interceptor trademark will be amortized prospectively over its estimated remaining useful life. The recorded impairment charge is based on the preliminary valuation and is management’s best estimate as of the filing date of these condensed consolidated financial statements. The Company is in the process of completing its evaluation of the key inputs used to estimate the fair value of its indefinite lived trademarks. The impairment charge is therefore subject to revision as management’s valuation is performed and completed during the fourth quarter. The Company has acquired other trademarks that are being amortized over their estimated useful lives, which average 10.0 years with no residual values. Amortization of intangible assets was $0.2 million and $0.2 million for the three months ended November 2, 2019 and November 3, 2018, respectively, and $0.5 million and $0.7 million for the nine months ended November 2, 2019 and November 3, 2018, respectively.

Goodwill arose from historical acquisitions and the Hi-Tec Acquisition that occurred during Fiscal 2017. Goodwill is tested at least annually for impairment but was tested this quarter as a result of the revenue shortfall referred to above and the sustained drop in the trading price of the Company’s stock. Because the Company has one reporting unit, its impairment test is based primarily on the relationship between its market capitalization and the book value of its equity adjusted for an estimated control premium. The goodwill impairment test this quarter indicated that the Company’s goodwill is not impaired.