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Entity Level Information - Additional Information (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) Segment | Dec. 31, 2020 USD ($)
Revenues From External Customers And Long Lived Assets [Line Items] |  |
Number of reporting segment | Segment | 1 |
Allowance for credit losses | $ 65 | $ 65
Receivables | Customer Concentration | Customer One |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |
Concentration risk percentage | 22.00% | 23.00%
Receivables | Customer Concentration | Customer Two |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |
Concentration risk percentage | 15.00% |
Receivables | Customer Concentration | Customer Three |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |
Concentration risk percentage | 10.00% |
U.S [Member] |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |
Long-lived assets | $ 2,572 | $ 3,040
Asia Pacific [Member] |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |
Long-lived assets | $ 710 | $ 782

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