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Significant Accounting Policies - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Intangible assets, Gross Carrying Amount	$ 972	$ 646
Intangible assets, Accumulated Amortization	$ (445)	(64)
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Intangible assets, Useful Life	1 year 3 months
Intangible assets, Gross Carrying Amount	$ 237	423
Intangible assets, Accumulated Amortization	$ (228)	(55)
Acquired Proprietary Software
Finite Lived Intangible Assets [Line Items]
Intangible assets, Useful Life	5 years
Intangible assets, Gross Carrying Amount	$ 150	148
Intangible assets, Accumulated Amortization	$ (35)	(5)
Reacquired Rights
Finite Lived Intangible Assets [Line Items]
Intangible assets, Useful Life	3 years 10 months 13 days
Intangible assets, Gross Carrying Amount	$ 503
Intangible assets, Accumulated Amortization	$ (152)
Internally Developed Software
Finite Lived Intangible Assets [Line Items]
Intangible assets, Useful Life	3 years
Intangible assets, Gross Carrying Amount	$ 82	75
Intangible assets, Accumulated Amortization	$ (30)	$ (4)

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+ References

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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-Topic 350
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-Paragraph 2
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