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Loans (Details 1) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Carrying Amounts $ 34,610,296 $ 36,096,221
Pledged deposits (note 2) [Member]    
Carrying Amounts 4,622,244 4,021,255
Right-of-use assets (note 9) [Member]    
Carrying Amounts 7,010,713 7,194,195
Buildings [Member]    
Carrying Amounts 16,293,297 17,683,961
Machinery and equipment [Member]    
Carrying Amounts $ 6,684,042 $ 7,196,810