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Basic and Diluted Loss Per Share - Anti-dilutive shares (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Warrants
Antidilutive Securities Excluded From Computation Of Earnings Per Share Line Items1 Line Items
Anti-dilutive shares	2,228,076	2,059,128	1,674,324
Convertible Debt 1
Antidilutive Securities Excluded From Computation Of Earnings Per Share Line Items1 Line Items
Anti-dilutive shares			302,976
Convertible Debt 2
Antidilutive Securities Excluded From Computation Of Earnings Per Share Line Items1 Line Items
Anti-dilutive shares			827,856

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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.

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- Definition

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