Intangible Assets, Net and Other non-current assets (Tables)

12 Months Ended

Dec. 31, 2020

Intangible Assets, Net and Other non-current assets [Abstract]

Components of Identifiable Intangible Assets

The following table provides the components of identifiable intangible assets, all of which are finite lived and other non-current assets:

	December 31,
	2020			2019
Purchase technology-based intangible	$	2,358		$	2,358
Purchased patent		509			509
		2,867			2,867
Less: accumulated amortization		(2,765	)		(2,714	)
Intangible assets, net		102			153
Royalty receivable		7,000			—
Other		836			286
Total other non-current assets	$	7,836		$	286