Quarterly report pursuant to Section 13 or 15(d)

Common Stock Issuances - Additional Information (Detail)

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Common Stock Issuances - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
May. 31, 2015
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock issued for compensation, shares   13,167   13,167 14,408
Common stock issued for compensation   $ 35,000   $ 15,000 $ 23,750
Common stock issued for payment of service, values       $ 30,000  
Number of Options, Exercised for employees and consultants   8,333   8,333 195,000
Value of stock options exercised for employees and consultants   $ 12,750   $ 12,750 $ 62,000
Number of Options, Exercised     75,000    
Exercise of stock options, price per shares     $ 1.84   $ 1.84
Common stock issued for exercise of stock options to board of directors     $ 41,250    
Capital raised through issuance of stock $ 10,000,000        
Net amount of capital raised through issuance of stock $ 9,400,000        
Board of Directors [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock issued for compensation, shares       30,000  
Common stock issued for compensation       $ 55,200  
Consulting Services [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock issued for compensation, shares       23,730  
Common stock issued for compensation       $ 37,500  
Common stock issued for payment of service, shares   12,098   12,098  
Common stock issued for payment of service, values   $ 30,000   $ 30,000