Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Narrative) (Details)

v3.10.0.1
Long-Term Debt (Narrative) (Details)
1 Months Ended 12 Months Ended
Aug. 31, 2013
USD ($)
debt_instrument
Mar. 31, 2011
Sep. 29, 2018
USD ($)
Mar. 09, 2018
USD ($)
Sep. 30, 2017
USD ($)
Mar. 31, 2017
USD ($)
Debt Instrument [Line Items]            
Outstanding borrowings     $ 98,660,000   $ 92,854,000  
Revolving Credit Facility | Revolving Credit Facility, due May 2016            
Debt Instrument [Line Items]            
Fixed charge coverage ratio period     12 months      
Fixed charge coverage ratio (FCCR)     1.1      
Revolving Credit Facility | Restrictions on Proceeds from Debt for Payment of Dividend and Stock Repurchase, Maximum Aggregate Amount of Dividends and Stock Repurchases Permitted            
Debt Instrument [Line Items]            
Maximum borrowing capacity       $ 6,000,000   $ 10,000,000
Revolving Credit Facility | Capital Lease and Increase Aggregate Principal Amount Such Leases Borrower May Enter Into            
Debt Instrument [Line Items]            
Maximum borrowing capacity       25,000,000   15,000,000
Revolving Credit Facility | Investments in Entities Not a Party to Amended Credit Agreement            
Debt Instrument [Line Items]            
Maximum borrowing capacity           $ 2,000,000
Revolving Credit Facility | Amended Credit Facility            
Debt Instrument [Line Items]            
Monthly installment payment     $ 200,000      
Amount in excess of average daily principal     $ 145,000,000      
Availability requirement, for dividends and stock repurchases (as a percentage)     15.00%      
Average period for availability requirement, for dividends and stock repurchases (in days)     30 days      
Aggregate amount of dividends and stock repurchases, benchmark     $ 10,000,000      
Aggregate amount of dividends and stock repurchases, benchmark basis spread based on cumulative net income     50.00%      
Retained earnings, amount available for dividends and stock repurchases     $ 14,900,000   7,700,000  
Revolving Credit Facility | Amended Credit Facility | Minimum            
Debt Instrument [Line Items]            
Annual facility fee (as a percentage)     0.25%      
Fixed charge coverage ratio (FCCR)     1.1      
Revolving Credit Facility | Amended Credit Facility | Maximum            
Debt Instrument [Line Items]            
Annual facility fee (as a percentage)     0.375%      
Revolving Credit Facility | Amended Credit Facility | Federal Funds            
Debt Instrument [Line Items]            
Variable rate basis     federal funds      
Basis spread on variable rate (as a percent)     0.50%      
Revolving Credit Facility | Amended Credit Facility | LIBOR            
Debt Instrument [Line Items]            
Variable rate basis     LIBOR      
Basis spread on variable rate (as a percent)     1.00%      
Revolving Credit Facility | Amended Credit Facility | Prime Rate            
Debt Instrument [Line Items]            
Variable rate basis     prime rate      
Notes Payable, Other Payables | Promissory Note, Maturity Date June 30, 2019            
Debt Instrument [Line Items]            
Outstanding borrowings     $ 2,471,000   $ 5,344,000  
Salt Life Acquisition | Notes Payable, Other Payables            
Debt Instrument [Line Items]            
Number of promissory notes issued (debt instruments) | debt_instrument 2          
Debt instrument, face amount $ 22,000,000.0          
One-time installment payment $ 9,000,000.0          
Discounted value     2,500,000      
Salt Life Acquisition | Notes Payable, Other Payables | Promissory Note, Maturity Date June 30, 2016            
Debt Instrument [Line Items]            
Imputed interest (as a percentage) 1.92%          
Salt Life Acquisition | Notes Payable, Other Payables | Promissory Note, Maturity Date June 30, 2019            
Debt Instrument [Line Items]            
Imputed interest (as a percentage) 3.62%          
Letter of Credit | Line of Credit            
Debt Instrument [Line Items]            
Maximum borrowing capacity       25,000,000    
Revolving Credit Facility | Line of Credit            
Debt Instrument [Line Items]            
Line of credit facility, average excess availability, base amount       145,000,000    
Maximum borrowing capacity       $ 200,000,000    
Payment term (in years)   18 months        
Periodic payment term (in months)   6 months        
United States | Revolving Credit Facility | Line of Credit            
Debt Instrument [Line Items]            
Outstanding under credit facility     $ 85,700,000      
Average interest rate (as a percentage)     4.10%      
Remaining borrowing capacity     $ 25,900,000