Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.3.1.900
Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Oct. 08, 2014
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
Tax Credit Carryforward [Line Items]        
Effective tax rate   25.10% (2.00%) (0.30%)
Annual usage limitation   $ 135,000    
Accrued expenses related to income taxes payable   12,000 $ 33,000  
Deferred tax liability as a result of transaction   368,000 1,335,000  
Valuation allowance   46,196,000 $ 45,867,000  
Federal        
Tax Credit Carryforward [Line Items]        
Net operating loss carryforwards   $ 68,307,000    
NOL carryforwards expire date   2029    
State        
Tax Credit Carryforward [Line Items]        
Net operating loss carryforwards   $ 79,046,000    
NOL carryforwards expire date   2016    
Whitney Automotive Group (WAG) | Federal        
Tax Credit Carryforward [Line Items]        
Net operating loss carryforwards   $ 2,690,000    
AutoMD        
Tax Credit Carryforward [Line Items]        
Common stock issued (in shares) 7,000,000      
Percentage ownership after issuance of shares 64.10%      
Deferred tax liability as a result of transaction   1,335,000    
AutoMD | Federal        
Tax Credit Carryforward [Line Items]        
Net operating loss carryforwards   $ 5,152,000