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Common Stock and Warrants - Summary of Warrant Activity (Details)			12 Months Ended
	Dec. 31, 2020 $ / shares shares	Dec. 31, 2020 $ / shares shares	Dec. 31, 2020 $ / shares shares	Dec. 31, 2020 $ / shares shares	Dec. 31, 2019 $ / shares shares	Dec. 31, 2019 $ / shares shares
Class Of Warrant Or Right [Line Items]
Number of Warrants, Exercised	(2,025)	(2,025)
Number of Warrants, Outstanding	341,905	341,905	341,905	341,905
CAD
Class Of Warrant Or Right [Line Items]
Number of Warrants, Outstanding			68,351	68,351	95,799	95,799
Number of Warrants, Cancelled/Expired					(26,352)	(26,352)
Number of Warrants, Exercised					(1,096)	(1,096)
Number of Warrants, Outstanding					68,351	68,351
Number of Warrants, Outstanding and exercisable	68,351	68,351	68,351	68,351
Weighted-Average Exercise Price, Outstanding | $ / shares				$ 428.75		$ 381.15
Weighted Average Exercise Price, Cancelled/Expired | $ / shares						262.50
Weighted-Average Exercise Price, Exercised | $ / shares						262.50
Weighted-Average Exercise Price, Outstanding | $ / shares						$ 428.75
Weighted-Average Exercise Price, Outstanding and exercisable | $ / shares		$ 428.75		$ 428.75
USD
Class Of Warrant Or Right [Line Items]
Number of Warrants, Outstanding			18,607	18,607	18,607	18,607
Number of Warrants, Granted			273,554	273,554
Number of Warrants, Cancelled/Expired			(18,607)	(18,607)
Number of Warrants, Outstanding					18,607	18,607
Number of Warrants, Outstanding and exercisable	273,554	273,554	273,554	273,554
Weighted-Average Exercise Price, Outstanding | $ / shares			$ 428.32		$ 428.32
Weighted-Average Exercise Price, Granted | $ / shares			16.04
Weighted Average Exercise Price, Cancelled/Expired | $ / shares			428.32
Weighted-Average Exercise Price, Outstanding | $ / shares					$ 428.32
Weighted-Average Exercise Price, Outstanding and exercisable | $ / shares	$ 16.04		$ 16.04

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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