Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Inventory (Details)

v3.22.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Inventory (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Inventory reserves $ 6,416 $ 13,064
Inventory scrap losses $ 526 $ 587