Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Inventory (Details)

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Summary of Significant Accounting Policies - Schedule of Inventory (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Accounting Policies [Abstract]    
Chemical washing solutions $ 7,055 $ 6,406
Other 81 52
Total inventory, gross 7,136 6,458
Reserve for obsolescence (136) (124)
Total inventory, net $ 7,000 $ 6,334