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Note 9 - Equity Method Investment - TEL's Summarized Financial Information - Balance Sheets (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Current Assets $ 28,577 $ 25,877
Non-current Assets 346,014 273,987
Current Liabilities 85,751 78,530
Non-current Liabilities 232,992 176,389
Total Equity $ 55,848,000 $ 44,945,000