Intangible Assets

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets Disclosure [Text Block]

Intangible Assets

The following table summarizes intangible assets, net (in thousands):

	September 30, 2020		December 31, 2019
Developed technology	$	13,323	$	13,323
Supplier agreement	1,560		—
Channel partner relationships	730		730
Capitalized development costs(1)	2,959		3,047
Customer relationships	380		380
	18,952		17,480
Accumulated amortization:
Developed technology	(13,038)		(12,682)
Supplier agreement	(17)		—
Channel partner relationships	(446)		(355)
Capitalized development costs(1)	(2,303)		(2,094)
Customer relationships	(337)		(328)
	(16,141)		(15,459)
Total finite-lived assets, net	2,811		2,021
Indefinite-lived intangible assets - trade names	280		280
Total intangible assets, net	$	3,091	$	2,301

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(1)    Includes the impact of foreign currency exchange rate fluctuations.

Amortization expense of intangible assets was $258,000 and $252,000 during the three months ended September 30, 2020 and 2019, respectively. Amortization expense of intangible assets was $740,000 and $771,000 during the nine months ended September 30, 2020 and 2019, respectively. Estimated amortization expense for intangible assets is expected to be approximately $228,000 for the remainder of 2020 and $606,000, $459,000, $138,000, $116,000, and $115,000 in fiscal 2021, 2022, 2023, 2024 and 2025, respectively.