13. Plant Acquisition	6 Months Ended
Jun. 30, 2019
Business Combinations [Abstract]
Plant Acquisition	On August 31, 2018, the Company closed a Member Interest and Capital Share Agreement (the “Agreement”) with Great Lakes Chemical Corporation and Lanxess Holding Company US Inc., as the sellers, and the Company as the buyer. Under the Agreement, the Company acquired a subsidiary of the sellers which includes an antimony plant, equipment and land located in Reynosa, Mexico. The Company disassembed, salvaged and transported the antimony plant and equipment for use in its existing operations in both Mexico and the United States. The project involved moving heavy equipment and was completed in the second quarter of 2019. In addition, the Company was paid $1,500,000 by the sellers, which was recognized as operating income in the quarter ended September 30, 2018, to assist in the salvage and transport costs of the useable equipment. The transaction was accounted for as an asset acquisition as there was no business associated with the acquired assets. The real property acquired with the plant was sold for $700,000 in November 2018, for which the Company received $300,000 in 2018 and the remaining balance of $400,000 in the three month period ended March 31, 2019.

13. Plant Acquisition

6 Months Ended

Jun. 30, 2019

On August 31, 2018, the Company closed a Member Interest and Capital Share Agreement (the “Agreement”) with Great Lakes Chemical Corporation and Lanxess Holding Company US Inc., as the sellers, and the Company as the buyer. Under the Agreement, the Company acquired a subsidiary of the sellers which includes an antimony plant, equipment and land located in Reynosa, Mexico. The Company disassembed, salvaged and transported the antimony plant and equipment for use in its existing operations in both Mexico and the United States. The project involved moving heavy equipment and was completed in the second quarter of 2019. In addition, the Company was paid $1,500,000 by the sellers, which was recognized as operating income in the quarter ended September 30, 2018, to assist in the salvage and transport costs of the useable equipment. The transaction was accounted for as an asset acquisition as there was no business associated with the acquired assets. The real property acquired with the plant was sold for $700,000 in November 2018, for which the Company received $300,000 in 2018 and the remaining balance of $400,000 in the three month period ended March 31, 2019.