Restricted Cash - Additional Information (Detail) (USD $)				6 Months Ended		6 Months Ended
	Jun. 30, 2014	May 10, 2012	Jun. 30, 2014 Term Loan [Member]	Jun. 30, 2014 Project Term Loan [Member]	May 31, 2014 Project Term Loan [Member]	Jun. 30, 2014 Interest-bearing Deposits [Member]	Jul. 11, 2008 Interest-bearing Deposits [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 400,000		$ 316,880	$ 483,638	$ 500,000		$ 500,000
Restricted cash purpose						$500,000 was deposited into an interest-bearing account from which principal and interest payments are made. This mortgage loan has since been extended to July 2016
Restricted cash for term loan		$ 8,000,000			$ 10,000,000
Loan maturity period				2015-05