10. Intangible Assets

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

10. Intangible Assets, net

Intangible assets, net as of December 31, 2019 and 2018 consisted of the following:

	Useful Life				Accumulated			Impairment
	(in months)		Gross		Amortization			Charge			Net
As of December 31, 2019
Patent		57	$	2,700	$	(2,700	)	$	–		$	–
Customer Relationship		120		4,370		(1,547	)		(1,295	)		1,528
			$	7,070	$	(4,247	)	$	(1,295	)	$	1,528
As of December 31, 2018
Patent		57	$	2,700	$	(2,700	)	$	–		$	–
Customer Relationship		120		4,366		(1,270	)		(1,295	)		1,801
			$	7,066	$	(3,970	)	$	(1,295	)	$	1,801

The customer relationship was mainly contributed by the acquisition of Solar Juice in May 2015. As customer relationship with clients was the key driver of the revenue for Solar Juice, which will bring further economic benefit to the Group’s business. Therefore, the customer relationship was separately identified as an intangible asset on the acquisition date. The balance is amortized over the useful life of 10 years. No impairment loss was provided for intangible assets for the years ended December 31, 2019, 2018 and 2017.

Amortization expense for other intangible assets was $278, $300 and $302 from continuing operations for the years ended December 31, 2019, 2018 and 2017, respectively.

As of December 31, 2019, the estimated future amortization expense related to other intangible assets is as follows: 

	USD
2020	$	276
2021		276
2022		276
2023		276
2024		276
Thereafter		148
	$	1,528