Annual report pursuant to Section 13 and 15(d)

Stock Options - Additional Information (Detail)

v3.3.1.900
Stock Options - Additional Information (Detail) - USD ($)
12 Months Ended
Jan. 01, 2016
Jan. 02, 2015
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense     $ 1,153,302 $ 193,120
Weighted average grant-date fair value, options granted     $ 1.41  
Total fair value of options, vested     $ 1,290,500  
Total unrecognized compensation expense     $ 1,306,093  
Share-based compensation expense, not yet recognized period of recognition     3 years 2 months 16 days  
2014 Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Increase in shares reserved for future grants   1,815,683    
Shares available for grant     4,545,135  
Increases in number of shares of common stock available for issuance, minimum percentage of outstanding common stock     7.00%  
2014 Incentive Plan [Member] | Subsequent Event [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Increase in shares reserved for future grants 1,250,000      
Aggregate common stock available for stock options granted, shares 9,916,017      
Shares available for grant 5,795,133      
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense     $ 1,153,302 $ 193,120
Expected term in years     6 years 8 months 23 days 6 years 2 months 12 days
Stock Options [Member] | 2014 Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate common stock available for stock options granted, shares     8,666,017  
Stock option expiration period     10 years  
Expected term in years       6 years 3 months
Stock Options [Member] | 2014 Incentive Plan [Member] | Subsequent Event [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate common stock available for stock options granted, shares 9,916,017