Summary of Significant Accounting Policies - Deferred Commissions (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Deferred Commissions [Roll Forward] | ||
| Balance, beginning of the period | $ 309 | $ 369 |
| Deferral of commissions earned | 94 | 171 |
| Recognition of commission expense | (193) | (231) |
| Balance, end of the period | $ 210 | $ 309 |
| X | ||||||||||
- Definition Capitalized Contract Cost, Increase from Deferral No definition available.
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| X | ||||||||||
- Definition Deferred Commissions No definition available.
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| X | ||||||||||
- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, before accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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