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Accrued Expenses and Other Liabilities - Schedule of Accrued Expenses and Other Liabilities (Detail) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Accrued Expenses And Other Liabilities [Abstract]    
Accrued payroll and related expenses $ 729,212 $ 728,825
Accrued insurance 489,467 840,986
Other accrued expenses and liabilities 269,314 183,615
Net accrued expenses and other liabilities $ 1,487,993 $ 1,753,426