3. Intangible Assets, Net and Goodwill

​

Net intangible assets as of December 25, 2021 and March 27, 2021 consisted of the following (in thousands, except for weighted average useful life):

​

​

​

Amortization expense for intangible assets totaled less than $0.1 million for both the thirteen weeks ended December 25, 2021 and December 26, 2020, and is included in selling, general and administrative expenses.

​

Amortization expense for intangible assets totaled less than $0.1 million for both the thirty-nine weeks ended December 25, 2021 and December 26, 2020, and is included in selling, general and administrative expenses.

​

As of December 25, 2021, estimated future amortization of intangible assets was as follows:

​

​

The Company performs its annual goodwill impairment assessment on the first day of the fourth fiscal quarter, or more frequently if it believes that indicators of impairment exist. The Company’s goodwill balance was $197.5 million as of both December 25, 2021 and March 27, 2021. As of December 25, 2021, the Company had identified no indicators of impairment with respect to its goodwill and intangible asset balances.

During both the thirteen and thirty-nine weeks ended December 25, 2021, the Company did not record any long-lived asset impairment charges. During the thirteen and thirty-nine weeks ended December 26, 2020, the Company recorded long-lived asset impairment charges of zero and $0.7 million, respectively, related to its stores. These long-lived asset impairment charges related to right-of-use assets and property, plant and equipment associated with our stores.