Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Share-Based Compensation - Warrants (Details)

v3.7.0.1
Stockholders' Equity and Share-Based Compensation - Warrants (Details) - USD ($)
12 Months Ended
May 05, 2009
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Aug. 08, 2016
Apr. 27, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Weighted-average period of unrecognized compensation expense   2 years 4 months 2 days        
Unrecognized share-based compensation expense   $ 1,344,000        
Warrant            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Exercise price (in dollars per share) $ 2.14         $ 8.32
Expiration period 7 years          
Aggregate intrinsic value for warrants outstanding and exercisable   0        
Compensation expense   0 $ 0 $ 0    
Unrecognized share-based compensation expense   $ 0        
Warrants Issued | Warrant            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of warrants (in shares) 30,000       10,000 20,000
Warrants to purchase to common stock, outstanding   20,000        
Warrants to purchase common stock, exercisable   20,000