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Intangible Assets, Net and Other non-current Assets (Tables) | 6 Months Ended
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Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Components of Identifiable Intangible Assets | The following table provides the components of identifiable intangible assets, all of which are finite lived:
| June 30, 2021 |  | December 31, 2020
Purchased technology-based intangible | $ | 2,358 |  |  | $ | 2,358 |
Purchased patent | 509 |  |  | 509 |
| 2,867 |  |  | 2,867 |
Less: accumulated amortization | (2,791) |  |  | (2,765) |
Intangible assets, net | 76 |  |  | 102 |
Royalty receivable | 6,000 |  |  | 7,000 |
Other | 908 |  |  | 836 |
Total other non-current assets | $ | 6,908 |  |  | $ | 7,836 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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