Annual report pursuant to Section 13 and 15(d)

Share-based Compensation - Additional Information (Detail)

v3.3.1.900
Share-based Compensation - Additional Information (Detail) - USD ($)
 12 Months Ended
May. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Apr. 23, 2014
May. 27, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares received from employees for tax withholding obligations   100,000 100,000    
Shares of common stock authorized for purchase by eligible employees at a discount through payroll deductions 200,000        
Maximum fair market value of shares an employee can purchase $ 25,000        
Stock compensation expense, amount   $ 40,233 $ 0    
Stock compensation expense, shares issued   98,070 0    
Employee stock purchase plan, discount rate 15.00%        
Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Issuance of shares of common stock   100,000      
Number of Shares, Granted   62,000 0    
Pre-tax total unrecognized compensation cost related to non-vested restricted shares   $ 100,000      
Period of recognize the cost   2019      
Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Issuance of shares of common stock   500,000      
Vesting period   12 months 12 months    
Stock options granted   500,000 800,000    
Stock Options [Member] | Chief Executive Officer [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock options granted   200,000 200,000    
Minimum [Member] | Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period   3 years      
Minimum [Member] | Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expiration period   3 years      
Maximum [Member] | Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expiration period   4 years      
Vesting period   4 years      
Maximum [Member] | Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expiration period   10 years      
2014 Amended and Restated Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Issuance of shares of common stock   2,000,000   2,000,000  
Availability of common shares   1,000,000      
Additional share issued under stock incentive plan         3,000,000