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Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income | The following table summarizes the activity of accumulated other comprehensive income during the years ended December 31, 2021, 2020 and 2019 (in thousands):
|  | Accumulated translation adjustment |  | Accumulated unrealized holding gains (losses) on available-for-sale securities |  | Accumulated other comprehensive income (loss)
Balance at December 31, 2018 |  | $ | 165 |  |  | $ | (67) |  |  | $ | 98 |
Other comprehensive income |  | 13 |  |  | 176 |  |  | 189 |
Balance at December 31, 2019 |  | 178 |  |  | 109 |  |  | 287 |
Other comprehensive (loss) income |  | (137) |  |  | 80 |  |  | (57) |
Balance at December 31, 2020 |  | 41 |  |  | 189 |  |  | 230 |
Other comprehensive income (loss) |  | 266 |  |  | (784) |  |  | (518) |
Balance at December 31, 2021 |  | $ | 307 |  |  | $ | (595) |  |  | $ | (288) |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: 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=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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