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Accounts Receivable, Net (Details 1) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Statement Line Items [Line Items]    
Gross carrying amount $ 5,934,285 $ 5,798,943
Allowance (21,315) (569)
Net 5,912,970 5,798,374
Current [member]    
Statement Line Items [Line Items]    
Gross carrying amount 1,937,221 2,251,060
Allowance
Net 1,937,221 2,251,060
Not later than one month [member]    
Statement Line Items [Line Items]    
Gross carrying amount 3,855,228 3,412,051
Allowance
Net 3,855,228 3,412,051
Later than one month and not later than two months [member]    
Statement Line Items [Line Items]    
Gross carrying amount 60,431 132,345
Allowance
Net 60,431 132,345
Later than two months and not later than three months [member]    
Statement Line Items [Line Items]    
Gross carrying amount 12,425 1,911
Allowance (621) (96)
Net 11,804 1,815
Later than three months [member]    
Statement Line Items [Line Items]    
Gross carrying amount 68,980 1,576
Allowance (20,694) (473)
Net $ 48,286 $ 1,103