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Capital Stock - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Sep. 29, 2016
Dec. 31, 2016
Dec. 31, 2015
Class of Stock [Line Items]      
Common stock, shares issued   20,647,612 13,273,470
Common stock price per share   $ 0.01 $ 0.01
Conversion of preferred stock in to common stock, preferred stock converted 10,737,275    
Proceeds from issuance of issuance of common stock, preferred stock and warrants, net of issuance costs $ 27,600 $ 27,630  
Warrant expense   $ 3,100 $ 11
Common stock, shares authorized   100,000,000 100,000,000
Preferred stock, shares authorized   30,000,000  
Minimum threshold percentage of beneficial common stock interest 4.99%    
Maximum threshold percentage of beneficial common stock interest on holder's discretion 9.99%    
Convertible preferred stock, terms of conversion   The Series A Preferred Stock shall not be converted if, after giving effect to the conversion, the holder and its affiliated persons would own beneficially more than 4.99% of our common stock (subject to adjustment up to 9.99% solely at the holder's discretion upon 61 days' prior notice to us or, solely as to a holder, if such limitation is waived by such holder upon execution of the private placement agreement).  
Series A Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred stock, shares issued 24,158.8693    
Preferred stock par value $ 0.01    
Private Placement [Member]      
Class of Stock [Line Items]      
Gross proceeds from issuance of common stock, preferred stock and warrants $ 30,000    
Common stock, shares issued 2,596,059    
Common stock price per share $ 2.25    
Conversion of preferred stock in to common stock, preferred stock converted 10,737,275 444.44  
Class of Warrants or right to purchase common stock 13,333,334    
Class of Warrants or right to purchase common stock, exercise price $ 2.25 $ 2.25  
Warrants granted to placement agent 133,333    
Proceeds from issuance of issuance of common stock, preferred stock and warrants, net of issuance costs $ 27,600    
Warrants granted to placement agent, exercise price $ 2.25    
Minimum percentage of outstanding common stock   50.00%  
Warrants expiry period   5 years  
Warrants exercisable period   6 months  
Fair value of warrants   $ 30,700  
Excess fair value of warrant liability   400  
Warrant expense   $ 3,100  
Preferred stock par value   $ 0.01  
Private Placement [Member] | Members of Board of Directors [Member]      
Class of Stock [Line Items]      
Common stock, shares issued   283,046  
Preferred stock, shares issued   2,563.1439  
Class of Warrants or right to purchase common stock   1,422,221  
Class of Warrants or right to purchase common stock, exercise price   $ 2.25  
Private Placement [Member] | Series A Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred stock, shares issued 24,158.8693    
Conversion of preferred stock in to common stock, preferred stock converted 444.44