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PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
PROPERTY, PLANT AND EQUIPMENT      
Total $ 36,655   $ 35,709
Less accumulated depreciation (8,639)   (8,193)
Total property, plant and equipment 28,016   27,516
Depreciation expense 260 $ 264  
Cost of product sales      
PROPERTY, PLANT AND EQUIPMENT      
Depreciation expense 121 $ 104  
Land      
PROPERTY, PLANT AND EQUIPMENT      
Total 14,949   14,949
Buildings and leasehold improvements      
PROPERTY, PLANT AND EQUIPMENT      
Total 13,863   13,722
Vehicles      
PROPERTY, PLANT AND EQUIPMENT      
Total 1,702   1,682
Machinery and equipment      
PROPERTY, PLANT AND EQUIPMENT      
Total 5,841   5,058
Furniture and fixtures      
PROPERTY, PLANT AND EQUIPMENT      
Total $ 300   $ 298