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Summary Of Significant Accounting Policies - Securities (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Anti-dilutive securities excluded from computation	1,836,815	7,023,402
Redeemable convertible preferred stock
Class of Stock [Line Items]
Anti-dilutive securities excluded from computation	0	5,202,940
Warrants to purchase redeemable convertible preferred stock
Class of Stock [Line Items]
Anti-dilutive securities excluded from computation	0	224,493
Warrants to purchase common stock
Class of Stock [Line Items]
Anti-dilutive securities excluded from computation	461,273	934,789
Common stock options
Class of Stock [Line Items]
Anti-dilutive securities excluded from computation	1,375,542	661,180

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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+ References

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