The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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JOINT VENTURE (Details) - USD ($)	12 Months Ended
JOINT VENTURE (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017	May 25, 2016
Vertex Recovery Management, LLC
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint venture (percent)			51.00%
Income from VRMLA included in consolidated income (percent)	100.00%
Operating income from VRMLA	$ 477,935	$ 602,259
Industrial Pipe, Inc.
Schedule of Equity Method Investments [Line Items]
Industrial Pipe's portion of VRMLA's operating income (percent)	49.00%
Industrial Pipe's portion of VRMLA's operating income	$ 234,188	$ 295,108
Vertex Recovery Management, LLC \| Industrial Pipe, Inc.
Schedule of Equity Method Investments [Line Items]
Ownership interest in VRMLA by Industrial Pipe, Inc. (percent)			49.00%