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Common Shares - Equity Financing (Details)		1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 12, 2021 USD ($) Y $ / shares shares	Jun. 30, 2020 USD ($)	Sep. 30, 2021 shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2021 USD ($) security shares	Sep. 30, 2020 USD ($) shares
Subsidiary, Sale of Stock [Line Items]
Proceeds from Issuance of Common Stock					$ 13,385,000	$ 1,436,000
Warrants Not Settleable in Cash, Fair Value Disclosure	$ 2,074,000
Measurement Input, Option Volatility [Member]
Subsidiary, Sale of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input	70.6
Measurement Input, Risk Free Interest Rate [Member]
Subsidiary, Sale of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input	0.43
Measurement Input, Expected Term [Member]
Subsidiary, Sale of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input | Y	3
Measurement Input, Share Price [Member]
Subsidiary, Sale of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input	0.89
Capital Units [Member]
Subsidiary, Sale of Stock [Line Items]
Stock Issued During Period, Shares, New Issues | shares	12,272,730
Proceeds from Issuance of Common Stock	$ 12,323,000
Number Of Shares Converted By Each Unit | shares	1
Number Of Shares Converted By Each Warrant | shares	0.5
Warrants Issued | shares	7,408,101
Class of Warrant or Right, Exercisable Term	36 months
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | shares	1
Exercise Price Of Warrants Or Rights | $ / shares	$ 1.25
Common Stock, Fair Value Disclosure	$ 11,426,000
Underwriter [Member] | Capital Units [Member]
Subsidiary, Sale of Stock [Line Items]
Warrants Issued | shares	351,282
At-The-Market Offering Agreement [Member] | H. C. Wainwright And Co., LLC [Member]
Subsidiary, Sale of Stock [Line Items]
Threshold of aggregate sales proceeds		$ 10,000,000
Stock Issued During Period, Shares, New Issues | shares			0	509,315	798,270	1,541,134
Proceeds from Issuance of Common Stock				$ 629,000	$ 871,000	$ 1,436,000
Offers or sales of common shares under Agreement to be made in Canada | security					0
Over-Allotment Option | Underwriter [Member] | Capital Units [Member]
Subsidiary, Sale of Stock [Line Items]
Warrants Issued | shares	920,454

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