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Property plant and equipment (Tables)
9 Months Ended
Sep. 30, 2018
Property Plant And Equipment Tables  
Schedule of property and equipment
    September 30, 2018     December 31, 2017  
    Cost     Amortization and Impairment     Net book value     Net book value  
                         
Land   $ 2,920,015     $     $ 2,920,015     $ 2,925,305  
Buildings     5,975,002       (373,848 )     5,601,154       5,840,268  
Furniture and fixtures     115,750       (41,154 )     74,596       72,047  
Leasehold improvements     312,614       (15,222 )     297,392       316,238  
    $ 9,323,381     $ (430,224 )   $ 8,893,157     $ 9,153,858