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Lease (Tables)
 3 Months Ended
Mar. 31, 2019
Leases [Abstract]  
Schedule of operating lease arrangements

   Mar 31,
2019		 
ASSETS    
Operating lease right-of-use assets  $505,305 
LIABILITIES     
Operating lease liabilities (current)   286,212 
Operating lease liabilities (noncurrent)   239,647 
Schedule of supplemental information related to operating leases

Cash paid for amounts included in the measurement of operating lease liabilities  $73,802 
Weighted average remaining lease term   1.86 years 
Weighted average discount rate   0.55%
Schedule of minimum future annual payments under non-cancellable leases

   Operating leases 
2019 (excluding the three months ended March 31, 2019)  $228,117 
2020  258,642 
2021  41,240 
Total future minimum lease payments, undiscounted  527,999 
Less: Imputed interest  (2,140)
Present value of future minimum lease payments  $525,859