Quarterly report pursuant to Section 13 or 15(d)

Lines of Credit and Other Borrowings - Additional Information (Detail)

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Lines of Credit and Other Borrowings - Additional Information (Detail)
 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 28, 2014
USD ($)
Jun. 30, 2014
USD ($)
Agreement
Jun. 03, 2014
USD ($)
May. 31, 2014
USD ($)
May. 05, 2014
USD ($)
Apr. 10, 2014
USD ($)
Mar. 04, 2014
USD ($)
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Dec. 31, 2014
USD ($)
Line Of Credit Facility [Line Items]                      
Repayments under Credit Agreements                   $ 16,904,000  
Unused capacity commitment fee percentage                 0.25%    
Interest expense incurred for lines of credit and loan and security agreement               $ 185,000   414,000  
Accrued interest payable                     $ 0
Amortization of discounts on lines of credit               80,000   200,000  
Amortization of debt issuance costs               71,000   128,000  
Restricted cash equivalent                 $ 200,000   $ 0
Aggregate agreements amendment fee.               35,000   45,000  
Financed insurance premium   $ 74,000           $ 74,000 $ 0 $ 74,000  
Borrowings payment term                 The Company financed a portion of its annual insurance premiums which it pays in installments over nine months.    
Financial insurance premiums interest rate   2.85%           2.85%   2.85%  
Interest expense incurred for financed insurance premiums               $ 1,000   $ 2,000  
Credit Agreements                      
Line Of Credit Facility [Line Items]                      
Number revolving credit facility agreements | Agreement   2                  
Repayments under Credit Agreements $ 2,900,000                    
Line of credit facility, expiration date                     May 01, 2014
Forbearance Agreement                      
Line Of Credit Facility [Line Items]                      
Credit agreements amendment fee           $ 10,000 $ 10,000        
Lines of credit maximum borrowing capacity           $ 4,000,000 $ 5,000,000        
Amendment No. 1                      
Line Of Credit Facility [Line Items]                      
Line of credit facility, expiration date         Jun. 01, 2014            
Revolving lines of credit fee paid         $ 10,000            
Amendment No. 2                      
Line Of Credit Facility [Line Items]                      
Line of credit facility, expiration date     Aug. 01, 2014                
Revolving lines of credit fee paid     $ 15,000                
Increase decrease in interest rate of lines of credit facility     0.50%                
Prime floor, daily prime plus LIBOR   2.50%           2.50% 2.50% 2.50%  
Amendment No. 2 | Domestic Revolver Credit Facility | Prime Rate                      
Line Of Credit Facility [Line Items]                      
Interest on principal balance rate plus                 2.50%    
Amendment No. 2 | Ex-Im Revolver | Prime Rate | Minimum                      
Line Of Credit Facility [Line Items]                      
Interest on principal balance rate plus                 2.00%    
Amendment No. 3                      
Line Of Credit Facility [Line Items]                      
Line of credit facility, expiration date       Aug. 01, 2014              
Revolving lines of credit fee paid       $ 10,000