Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2019

Intangible Assets

Schedule of Intangible assets

The gross carrying amount and accumulated amortization of the Company’s acquired identifiable intangible assets as of June 30, 2019 are as follows (in thousands):

	Weighted Average	Gross Carrying		Accumulated
	Amortization Period	Amount		Amortization		Total
Acquired technology	10 years	$	7,757	$	(2,483)	$	5,274
Customer relationships	10 years		260		(136)		124
Trademark	5 years		60		(60)		—
		$	8,077	$	(2,679)	$	5,398

The gross carrying amount and accumulated amortization of the Company’s acquired identifiable intangible assets as of December 31, 2018 are as follows (in thousands):

	Weighted Average	Gross Carrying		Accumulated
	Amortization Period	Amount		Amortization		Total
Acquired technology	9 years	$	5,926	$	(2,176)	$	3,750
Customer relationships	10 years		260		(123)		137
Trademark	5 years		60		(57)		3
		$	6,246	$	(2,356)	$	3,890

Schedule of future amortization of intangible assets

Amortization expense for acquired identifiable intangible assets was $0.2 million for both the three months ended June 30, 2018 and 2017, respectively. Amortization expense for the acquired identifiable assets was $0.3 million for both the six months ended June 30, 2019 and 2018. Estimated amortization expense for subsequent years is as follows (in thousands):

Remainder of 2019	$	370
2020		741
2021		741
2022		741
2023		741
2024 and thereafter		2,064
Total	$	5,398