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Stockholders' Equity and Stock Based Compensation - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jul. 27, 2016
Jan. 28, 2016
Jan. 02, 2015
Dec. 09, 2014
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Jul. 25, 2016
Jan. 04, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Common stock authorized (shares)         75,000,000   75,000,000        
Common stock par value (usd per share)         $ 0.0001   $ 0.0001        
Preferred stock authorized (shares)         25,000,000   25,000,000        
Preferred stock par value (usd per share)         $ 0.0001   $ 0.0001        
Common stock outstanding (shares)         20,540,617   20,540,617       20,886,261
Preferred stock outstanding (shares)         0   0       0
Total stock based compensation expense         $ 730,000 $ 662,000 $ 1,368,000 $ 1,104,000      
Decrease in additional paid-in capital             4,500,000        
Additional paid-in capital         $ 105,867,000   $ 105,867,000       $ 110,435,000
Common Stock Repurchase Program [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Stock repurchase authority                   $ 10,000,000.0  
2015 LTIP [Member] | Restricted Stock Units [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Vesting period       36 months              
Granted (shares)             232,164        
January 2, 2015 [Member] | 2015 LTIP [Member] | Restricted Stock Units [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted (shares)     254,777                
Granted     $ 4,400,000                
January 28, 2016 [Member] | 2015 LTIP [Member] | Restricted Stock Units [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted (shares)   227,082                  
Granted   $ 3,800,000                  
Subsequent Event [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Declaration date Jul. 27, 2016                    
Dividend rate (usd per share) $ 0.125                    
Record date Aug. 19, 2016                    
Payment date Sep. 09, 2016                    
Dividends declared $ 2,600,000                    
Subsequent Event [Member] | Employee Stock Purchase Plan [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Stock approved during period (shares)                 250,000    
Eligible Employees [Member] | 2015 LTIP [Member] | Restricted Stock Units [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted (shares)             5,082        
Total stock based compensation expense             $ 1,200,000