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Summary of Significant Accounting Policies - Anti-dilutive weighted average diluted common shares (Details) - shares	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Total potentially dilutive shares	5,330,702	6,634,511
Employee Stock Options
Total potentially dilutive shares	4,104,519	3,290,357
Warrants
Total potentially dilutive shares	1,226,183	3,344,154

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- 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://www.xbrl.org/2003/role/disclosureRef
-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

+ Details

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- Details

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- Details

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