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OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND ESTIMATES - Property and Equipment (Details)
12 Months Ended
Dec. 31, 2020
Building [Member] | Minimum  
Property, Plant and Equipment, Useful Life 20 years
Building [Member] | Maximum  
Property, Plant and Equipment, Useful Life 40 years
Machinery, equipment, furniture and fixtures and vehicles [Member]  
Property, Plant and Equipment, Useful Life 3 years
Machinery, equipment, furniture and fixtures and vehicles [Member] | Minimum  
Property, Plant and Equipment, Useful Life 3 years
Machinery, equipment, furniture and fixtures and vehicles [Member] | Maximum  
Property, Plant and Equipment, Useful Life 15 years
Computer and Communication Equipment [Member]  
Property, Plant and Equipment, Useful Life 3 years