Quarterly report pursuant to Section 13 or 15(d)

PREPAID EXPENSES AND OTHER ASSETS (Details)

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PREPAID EXPENSES AND OTHER ASSETS (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Prepaid Expense and Other Assets, Current [Abstract]    
Prepaid license $ 250 $ 500
Prepaid insurance premiums 0 1,145
Spare parts 2,561 2,114
Other prepaid expenses and assets 585 554
Total prepaid expenses and other assets $ 3,396 $ 4,313