Note 3 – Intangibles, net

Intangibles, net consists of the following (in thousands):

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The Kona Grill trade name and other finite-lived intangible assets are amortized using the straight-line method over its estimated useful life of 10 to 20 years. Amortization expense was $0.3 million and $0.2 million for the three months ended September 30, 2021 and 2020, respectively, and $0.7 million for each of the nine months ended September 30, 2021 and 2020. The Company’s estimated aggregate amortization expense for each of the five succeeding fiscal years is approximately $0.9 million annually.