Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Change in Carrying Amount of Goodwill

The change in the carrying amount of goodwill for the year ended and six-month period ended was as follows (in thousands):

	December 31,		June 30,
	2019		2020
			(unaudited)
Beginning balance	$	8,060	$	8,552
Additions attributable to acquisition		492		—
Acquisition adjustments		—		1,290
Ending balance	$	8,552	$	9,842

Schedule of Carrying Amount and Amortization of Software and Intangible Assets

The useful life, gross carrying value, accumulated amortization, and net balance for each major class of definite-lived intangible assets at each balance sheet date were as follows (in thousands):

		December 31, 2019							June 30, 2020
	Useful Life	Gross carrying amount		Accumulated amortization			Net balance		Gross carrying amount		Accumulated amortization			Net balance
									(unaudited)
Unpatented    technology	3 - 7 years	$	14,660	$	(14,195	)	$	465	$	14,660	$	(14,285	)	$	375
Customer    relationships	5 - 18 years		19,300		(5,631	)		13,669		19,300		(6,380	)		12,920
Patents	7 years		11,300		(11,300	)		—		11,300		(11,300	)		—
Trademarks	10 years		5,270		(4,304	)		966		5,270		(4,568	)		702
Total		$	50,530	$	(35,430	)	$	15,100	$	50,530	$	(36,533	)	$	13,997

Schedule of Estimated Amortization Expense of Capitalized Software and Intangible Assets

Based on capitalized intangible assets as of June 30, 2020, estimated amortization expense amounts in future fiscal years are as follows (unaudited and in thousands):

Year ending December 31,	Amortization
2020 (July - December)	$	1,103
2021		2,118
2022		1,603
2023		1,498
2024		1,498
Thereafter		6,177
Total amortization	$	13,997