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Income Taxes - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Income Taxes [Line Items]    
Income tax losses $ 19,198,000  
Scientific research and experimental development expenditures 28,200,000  
Investment tax credits $ 4,304,000  
Tax examination 2016 2017 2018 2019 2020  
Unrecognized tax positions $ 0 $ 0
Accrued interest or penalties 0 $ 0
U.S. Federal Research and Development    
Income Taxes [Line Items]    
Tax credit carryforward, amount $ 800,000  
Tax credit carry forward expiration year 2038  
U.S. State Research and Development    
Income Taxes [Line Items]    
Tax credit carryforward, amount $ 200,000  
Tax credit carry forward expiration year 2038