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Common Shares - Equity Financings (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jul. 31, 2021
USD ($)
Y
$ / shares
shares
Jan. 31, 2021
USD ($)
Jun. 30, 2020
USD ($)
Dec. 31, 2022
USD ($)
security
shares
Dec. 31, 2021
USD ($)
shares
Subsidiary, Sale of Stock [Line Items]          
Proceeds from Issuance of Common Stock | $       $ 244 $ 13,385
Warrants Not Settleable in Cash, Fair Value Disclosure | $ $ 1,991        
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 | $ / shares 0.89        
Capital Units [Member]          
Subsidiary, Sale of Stock [Line Items]          
Stock Issued During Period, Shares, New Issues | shares 12,272,730        
Warrants Issued | shares 7,408,101        
Proceeds from Issuance of Common Stock | $ $ 12,323        
Number Of Shares Converted By Each Warrant | shares 0.5        
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        
Class of Warrant or Right, Exercisable Term 36 months        
Common Stock, Fair Value Disclosure | $ $ 11,509        
Payments of Stock Issuance Costs | $ $ 1,177        
Number Of Shares Converted By Each Unit | shares 1        
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]          
Stock Issued During Period, Shares, New Issues | shares       401,884 798,270
Proceeds from Issuance of Common Stock | $   $ 191   $ 244 $ 871
Threshold of aggregate sales proceeds | $     $ 10,000    
Remaining Threshold Aggregate Sales Proceeds | $       $ 9,748  
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