Intangible Assets

6 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Note 6. Intangible Assets

Intangible assets include Miami-Dade County Notices of Acceptances (NOA’s), which are certificates issued for approved products and required to market hurricane- resistant glass in Florida. Also, it includes the intangibles acquired from the acquisition of GM&P.

	June 30, 2019
	Gross		Acc. Amort.			Net
Trade Names	$	980	$	(457	)	$	523
Notice of Acceptances (NOAs), product designs and other intellectual property		10,870		(5,822	)		5,048
Non-compete Agreement		165		(77	)		88
Customer Relationships		4,140		(2,069	)		2,071
Total	$	16,155	$	(8,425	)	$	7,730

	December 31, 2018
	Gross		Acc. Amort.			Net
Trade Names	$	980	$	(359	)	$	621
Notice of Acceptances (NOAs), product designs and other intellectual property		10,881		(5,373	)		5,508
Non-compete Agreement		165		(60	)		105
Contract Backlog		3,090		(2,832	)		258
Customer Relationships		4,140		(1,626	)		2,514
Total	$	19,256	$	(10,250	)	$	9,006

The weighted average amortization period is 5.4 years.

During the six months ended June 30, 2019 and 2018, the amortization expense amounted to $1,485 and $1,776, respectively, and was included within the general and administration expenses in our Condensed Consolidated Statement of Operations. Similarly, amortization expense for the three months ended June 30, 2019 and 2018 amounted to $609 and $891, respectively.

The estimated aggregate amortization expense for each of the five succeeding years as of June 30, 2019 is as follows:

Year ending	(in thousands)
2019	$	1,154
2020		2,180
2021		2,150
2022		1,270
2023		789
Thereafter		187
	$	7,730