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Bank Loans (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Debt Disclosure [Abstract]    
Mortgage loan $ 5,098,796
Line of revolving loan 4,558,749
Short-term bank loans 1,195,297 2,182,960
Long-term bank loans 244,910
Total bank loans 10,852,842 2,427,870
Less: Total bank loans - discontinued operations (1,195,297) (2,427,870)
Total bank loans - continuing operations 9,657,545
Reclassifying as:    
Current portion 4,676,184
Long-term portion (more than 12 months) 4,981,361
Total bank loans $ 9,657,545