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Intangible Assets, Redeemable Common Units and Mezzanine Equity - Additional information (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2015
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2019
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Cash payment upon execution of agreement     $ 1,000      
Common units subject to possible redemption 6,000 6,000   6,000 6,000 6,000
Oregon State University ("OSU").            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Common units subject to possible redemption 6,000          
Payments made for research and testing $ 893 $ 1,104        
Amounts payable 150 186        
Agreement | Oregon State University ("OSU").            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Number of common units granted     2,750      
Weighted average price per unit     $ 0.25      
PLA | Oregon State University ("OSU").            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Number of common units granted     3,250      
Weighted average price per unit     $ 0.45      
Cash payment upon execution of agreement     $ 1,000      
Gross carrying amount 2,462 2,462        
Accumulated amortization 1,226 $ 1,049        
2022 178          
2023 178          
2024 178          
2025 178          
2026 $ 178