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OTHER NON-CURRENT ASSETS (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Prepaid Expense and Other Assets, Noncurrent [Abstract]    
Deferred contract costs [1] $ 2,840 $ 2,674
Deposits 306 279
Other non-current assets $ 3,146 $ 2,953
[1] See Note 1W.