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Long-Term Debt - Additional Information (Detail) - USD ($)
3 Months Ended
Jun. 26, 2015
Dec. 31, 2015
Jan. 01, 2016
Sep. 30, 2015
Debt Instrument [Line Items]        
Long-term Debt   $ 41,694,000   $ 48,929,000
Current maturities of long-term debt   10,816,000   10,503,000
Foreign Subsidiary Borrowings        
Debt Instrument [Line Items]        
Long-term Debt   12,830,000   $ 13,197,000
Current maturities of long-term debt   $ 2,270,000    
London Interbank Offered Rate (LIBOR) | Revolving loan        
Debt Instrument [Line Items]        
Debt Instrument, Basis Spread on Variable Rate   2.75%    
London Interbank Offered Rate (LIBOR) | Term loan        
Debt Instrument [Line Items]        
Debt Instrument, Basis Spread on Variable Rate   2.75%    
Effective interest rate   3.40%    
Euro Interbank Offered Rate (Euribor) | Foreign Subsidiary Borrowings | Minimum        
Debt Instrument [Line Items]        
Interest rate spread   1.00%    
Euro Interbank Offered Rate (Euribor) | Foreign Subsidiary Borrowings | Maximum        
Debt Instrument [Line Items]        
Interest rate spread   4.00%    
Credit And Security Agreement        
Debt Instrument [Line Items]        
Assets pledged as collateral, percent 65.00%      
Periodic payment $ 714,000      
Accordion feature, increase limit $ 15,000,000      
Credit And Security Agreement | Minimum        
Debt Instrument [Line Items]        
Commitment fee percentage   0.15%    
Credit And Security Agreement | Maximum        
Debt Instrument [Line Items]        
Commitment fee percentage   0.35%    
Credit And Security Agreement | Revolving loan        
Debt Instrument [Line Items]        
Debt instrument, term 5 years      
Line of credit facility, maximum borrowing Capacity $ 25,000,000      
Credit And Security Agreement | Term loan        
Debt Instrument [Line Items]        
Debt instrument, term 5 years      
Debt instrument, face amount $ 20,000,000      
Credit And Security Agreement | Base Rate        
Debt Instrument [Line Items]        
Effective interest rate   3.10%    
Unsecured Debt and Short Term Borrowing | Foreign Subsidiary Borrowings        
Debt Instrument [Line Items]        
Long-term Debt   $ 5,608,000    
Fair Value, Inputs, Level 2        
Debt Instrument [Line Items]        
Short-term debt   1,001,000    
Debt Instrument, Collateral Amount   $ 2,448,000    
Subsequent Event | Credit And Security Agreement | Revolving loan        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing Capacity     $ 20,000,000