Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Accumulated amortization	$ (274)	$ (12,629)
Intangible assets, net	573	13,826
Aggregate amortization expense:	2,539	4,629
Patents [Member]
Gross carrying value	847	847
Technology [Member]
Gross carrying value		13,789
Customer Relationships [Member]
Gross carrying value		9,911
Tradename [Member]
Gross carrying value		1,867
Non-compete [Member]
Gross carrying value		$ 41

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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