Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Effect of Adjustments to Revise Balance Sheet (Detail)

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Summary of Significant Accounting Policies - Effect of Adjustments to Revise Balance Sheet (Detail) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Interim Reporting [Line Items]    
Other assets $ 3,120,779 $ 770,468
Total assets 88,205,335 40,985,848
Deferred tax liability (743,676) (743,676)
Total liabilities (31,534,011) (32,849,122)
As Previously Reported [Member]
   
Interim Reporting [Line Items]    
Other assets   285,521
Total assets   40,500,901
Deferred tax liability   (258,729)
Total liabilities   (32,364,175)
Adjustment [Member]
   
Interim Reporting [Line Items]    
Other assets   484,947
Total assets   484,947
Deferred tax liability   (484,947)
Total liabilities   $ (484,947)