Loans (Details 1) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Carrying Amounts	$ 35,135,683	$ 36,096,221
Pledged deposits (note 2) [Member]
Carrying Amounts	3,954,858	4,021,255
Right-of-use assets (note 9) [Member]
Carrying Amounts	7,035,733	7,194,195
Buildings [Member]
Carrying Amounts	17,257,055	17,683,961
Machinery and equipment [Member]
Carrying Amounts	$ 6,888,037	$ 7,196,810