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Commitments and Contingencies - Additional Information (Detail) - Jun. 30, 2015
USD ($)
ft²
Loss Contingencies [Line Items]  
Annual base rent $ 471,000
Increased percentage of Company's annual base rent 3.00%
Tenant improvement allowances $ 675,690
Unamortized lease incentives $ 419,619
Building [Member]  
Loss Contingencies [Line Items]  
Amended office space subject to the lease | ft² 22,523
Other current liabilities [Member]  
Loss Contingencies [Line Items]  
Unamortized lease incentives $ 104,905
Other non-current liabilities [Member]  
Loss Contingencies [Line Items]  
Unamortized lease incentives 314,714
Standby letter of credit [Member]  
Loss Contingencies [Line Items]  
Standby letter of credit to the landlord $ 210,000