1. NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
	Dec. 31, 2020
Buildings | Minimum
Property, plant and equipment, useful life	8 years
Buildings | Maximum
Property, plant and equipment, useful life	20 years
Plant and Machinery | Minimum
Property, plant and equipment, useful life	3 years
Plant and Machinery | Maximum
Property, plant and equipment, useful life	8 years
Motor Vehicles
Property, plant and equipment, useful life	5 years
Furniture, Fixtures and Equipment | Minimum
Property, plant and equipment, useful life	3 years
Furniture, Fixtures and Equipment | Maximum
Property, plant and equipment, useful life	8 years