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Prepaid Expenses and Other Current Assets (Details) - USD ($)
Jun. 30, 2018
Dec. 31, 2017
Prepaid Expenses and Other Current Assets [Abstract]    
Prepaid expenses $ 325,209 $ 130,813
Other receivables 127,910 149,590
Security deposits [1] 34,264 34,264
Total $ 487,383 $ 314,667
[1] This amount consists of the current portion of escrow funds held against certain construction performance requirements.