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Summary of Significant Accounting Policies - Additional Information (Details)
1 Months Ended 12 Months Ended
Jul. 31, 2016
Dec. 31, 2021
USD ($)
segment
item
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Significant Accounting Policies [Line Items]          
Number of Reportable Segments | segment   1      
Accounts receivable   $ 14,223,000 $ 9,806,000    
Allowance for doubtful accounts   1,600,000 1,600,000    
Goodwill impairment loss   0 0    
Cylinder deposit liability   12,300,000 11,300,000    
Contract term 5 years        
Contract renewal term 5 years        
Operating Loss Carryforwards   29,300,000      
Deferred Tax Assets, Valuation Allowance   15,149,000 19,033,000 $ 19,000,000.0 $ 11,300,000
Reduction in valuation allowance   3,900,000      
Net Operating Loss Due to additional income   16,800,000      
Gross net operating losses   $ 7,270,000 $ 11,963,000    
Options and warrants excluded from the calculation of diluted shares | shares   2,583,523 5,329,515    
Stepdown from baseline levels, Final rule   10.00%      
Cumulative reduction in baseline, Subsequent allowance   40.00%      
Allocation allowance received by the company | item   3      
Allocation allowance received as a percentage of total HFC consumption   1.00%      
No Expiration [Member]          
Significant Accounting Policies [Line Items]          
Operating Loss Carryforwards   $ 0      
Annual percentage limitation of earnings to which NOLs are subject.   80.00%      
State and Local Jurisdiction [Member]          
Significant Accounting Policies [Line Items]          
Operating Loss Carryforwards   $ 21,000,000.0      
Customer Concentration Risk [Member] | One Customer | Revenue from Contract with Customer [Member]          
Significant Accounting Policies [Line Items]          
Concentration Risk, Percentage   10.00% 14.00%    
Customer Concentration Risk [Member] | One Customer | Accounts Receivable          
Significant Accounting Policies [Line Items]          
Accounts Receivable, net   $ 3,100,000 $ 2,900,000