Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

23. Other Liabilities and Other Deferred Income (Details)

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23. Other Liabilities and Other Deferred Income (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Other Liabilities And Other Deferred Income Details Abstract      
Other deferred income $ 290,786 $ 306,055 $ 301,800
Other liabilities 2,049 2,797 0
Total other liabilities and other deferred income $ 292,835 $ 308,852 $ 301,800