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Inventories (Tables)
12 Months Ended
Dec. 31, 2023
Inventory Disclosure [Abstract]  
Schedule of inventories
Inventories consist of the following as of December 31, 2023 and 2022 (in thousands):
December 31,
20232022
Raw materials$1,182 $1,179 
Work-in-process876 1,141 
Finished goods338 665 
Total inventories$2,396 $2,985