PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Total cost	$ 9,948		$ 9,627
Less: Total accumulated depreciation	(4,049)		(3,745)
Construction in progress	2,873		2,310
Total property, plant and equipment, net	8,772		8,192
Depreciation expense	439	$ 185
Manufacturing Equipment [Member]
Property, Plant and Equipment [Abstract]
Total cost	5,924		5,966
Office Equipment [Member]
Property, Plant and Equipment [Abstract]
Total cost	1,260		1,047
Transportation Equipment [Member]
Property, Plant and Equipment [Abstract]
Total cost	213		216
Leasehold Improvement [Member]
Property, Plant and Equipment [Abstract]
Total cost	$ 2,551		$ 2,398

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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