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Summary of Significant Accounting Policies - Addtional Information (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Summary of Significant Accounting Policies
Deferred Revenue	$ 1.3	$ 1.1

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- References

No definition available.

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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(5))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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