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Concentration of Credit Risk - Additional Information (Detail) (USD $)	9 Months Ended								9 Months Ended
	Sep. 30, 2013 Institution	Jul. 31, 2013	Sep. 30, 2013 Term Loan [Member]	Mar. 30, 2012 Term Loan [Member]	May 04, 2011 Term Loan [Member]	Sep. 30, 2013 Mortgage Payable [Member]	Jun. 30, 2013 Mortgage Payable [Member]	Jul. 11, 2008 Mortgage Payable [Member]	Sep. 30, 2013 Project Term Loan [Member]	Jul. 31, 2012 Project Term Loan [Member]	Sep. 30, 2013 Bahamian Deposit Insurance Corporation [Member] Maximum [Member]
Concentration Of Credit Risk [Line Items]
Insurance amount	$ 250,000										$ 50,000
Uninsured cash balance	11,800,000
Number of financial institution in which cash is maintain	1
Basis spread on variable rate, points		0.75%	1.00%	5.00%	5.00%	1.00%		0.75%	5.00%
Interest obligation from basis points variation, per month			4,200			900			8,300
Credit risk maturity period						2016-07
Basis spread on variable rate, points									1.00%
Project term loan	$ 1,280,500			$ 5,000,000	$ 5,000,000		$ 1,302,000	$ 2,580,000	$ 10,000,000	$ 10,000,000

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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