Goodwill and Intangible Assets - Carrying Amounts of Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands  | 
Dec. 31, 2021  | 
Dec. 31, 2020  | 
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 10,910 | $ 10,903 | 
| Accumulated Amortization | (8,430) | (7,072) | 
| Intangible assets - net | 2,480 | 3,831 | 
| Customer relationships | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 6,530 | 6,530 | 
| Accumulated Amortization | (4,050) | (3,489) | 
| Intangible assets - net | 2,480 | 3,041 | 
| Distribution agreements | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 326 | 326 | 
| Accumulated Amortization | (326) | (326) | 
| Intangible assets - net | 0 | 0 | 
| Technology and domain name | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 4,054 | 4,047 | 
| Accumulated Amortization | (4,054) | (3,257) | 
| Intangible assets - net | $ 0 | $ 790 | 
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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