Quarterly report pursuant to Section 13 or 15(d)

OTHER NONCURRENT ASSETS - Components of other noncurrent assets (Details)

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OTHER NONCURRENT ASSETS - Components of other noncurrent assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
OTHER NONCURRENT ASSETS    
Other investments $ 3,025 $ 3,000
Right-of-use asset 3,702 1,810
Long-term deposits 99 69
Total other noncurrent assets $ 6,826 $ 4,879