ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES. (Details 3)	12 Months Ended
	Dec. 31, 2019
Buildings [Member]
Property Plant and Equipment Useful Life	40 years
Facilities and plant equipment [Member] | Minimum [Member]
Property Plant and Equipment Useful Life	10 years
Facilities and plant equipment [Member] | Maximum [Member]
Property Plant and Equipment Useful Life	25 years
Other equipment, vehicles and furniture [Member] | Minimum [Member]
Property Plant and Equipment Useful Life	5 years
Other equipment, vehicles and furniture [Member] | Maximum [Member]
Property Plant and Equipment Useful Life	10 years