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INVENTORIES (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 1,719	$ 1,719
Work in process	2,225	1,420
Provision for excess and obsolete inventory	(761)	(736)
Total inventories	$ 3,183	$ 2,403

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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