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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Sublease Rental Payments

The following table shows the aggregate commitment by year:

 

Years ending December 31,      
2019   $ 505,621  
2020     347,845  
2021     226,817  
    $ 1,080,283