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Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2020
Equity [Abstract] |
Summary of Accumulated Balances Related to Each Component of Other Comprehensive Income (Loss) | The accumulated balances related to each component of other comprehensive income (loss), net of taxes, were as follows for the years ended December 31, 2020 and 2019:
(in thousands) | December 31, 2020 |  | December 31, 2019
Foreign currency translation | $ | 81 |  |  | $ | 13 |
Unrealized gain on marketable securities | 158 |  |  | 236 |
Accumulated other comprehensive income | $ | 239 |  |  | $ | 249 |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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