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Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2022
Accounting Policies [Abstract]  
Schedule of inventories
   March 31,   December 31, 
   2022   2021 
Raw materials, including those on consignment, net of reserve of $628 and $502, respectively  $1,765   $1,583 
Work-in-process   259    297 
Total inventories  $2,024   $1,880