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6. Joint Ventures (Details)
3 Months Ended
Mar. 31, 2020
New Jersey Mill  
Equity Method Investments and Joint Ventures Disclosure The Company owns 65% of the New Jersey Mill Joint Venture and has significant influence in its operations.
Butte Highlands JV, LLC  
Equity Method Investments and Joint Ventures Disclosure On January 29, 2016, the Company purchased a 50% interest in Butte Highlands JV, LLC (“BHJV”) from Timberline Resources Corporation for $225,000 in cash and 3,000,000 restricted shares of the Company’s common stock valued at $210,000 for a total consideration of $435,000.