3. Goodwill and Purchased Intangibles |
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Goodwill and Intangible Assets Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3. Goodwill and Purchased Intangibles |
3. Goodwill and Purchased Intangibles
Goodwill
The carrying value of goodwill at September 30, 2019 and December 31, 2018 was $537,550.
Intangible assets
The following table presents details of our purchased intangible assets as of September 30, 2019 and December 31, 2018:
The intangible assets are being amortized on a straight-line basis over their estimated useful lives of one to twenty years.
Amortization expense for intangible assets was $37,779 and $9,976 for the three months ended September 30, 2019 and 2018, respectively.
Amortization expense for intangible assets was $113,309 and $31,741 for the nine months ended September 30, 2019 and 2018, respectively.
The estimated future amortization expense of our intangible assets as of September 30, 2019 is as follows:
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