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Prepaid Expenses and Other Current Assets (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Prepaid Expenses and Other Current Assets [Abstract]    
Prepaid expenses $ 130,813 $ 126,523
Other receivables 149,590 144,848
Security deposits [1] 34,264 333,111
Total $ 314,667 $ 604,482
[1] This amount includes $34,264 and $308,375 as of December 31, 2017 and 2016, respectively, related to the current portion of escrow funds held against certain construction performance requirements.