Quarterly report pursuant to Section 13 or 15(d)

Debt (Narrative) (Details)

v3.10.0.1
Debt (Narrative) (Details)
 1 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2013
USD ($)
debt_instrument
Jun. 30, 2018
USD ($)
Jul. 01, 2017
USD ($)
Oct. 01, 2016
USD ($)
Mar. 09, 2018
USD ($)
Nov. 27, 2017
USD ($)
Sep. 30, 2017
USD ($)
Debt Instrument [Line Items]              
Payment of deferred financing fees   $ (2,000) $ 0        
Restrictions on Proceeds from Debt for Payment of Dividend and Stock Repurchase, Maximum Aggregate Amount of Dividends and Stock Repurchases Permitted | Revolving Credit Facility              
Debt Instrument [Line Items]              
Maximum borrowing capacity         $ 6,000,000 $ 10,000,000  
Capital Lease and Increase Aggregate Principal Amount Such Leases Borrower May Enter Into | Revolving Credit Facility              
Debt Instrument [Line Items]              
Maximum borrowing capacity         $ 25,000,000 15,000,000  
Investments in Entities Not a Party to Amended Credit Agreement | Revolving Credit Facility              
Debt Instrument [Line Items]              
Maximum borrowing capacity           $ 2,000,000  
Revolving Credit Facility, due May 2017 | Revolving Credit Facility              
Debt Instrument [Line Items]              
Retained earnings, amount available for dividends and stock repurchases   16,500,000         $ 7,700,000
Revolving Credit Facility, due May 2016 | Revolving Credit Facility              
Debt Instrument [Line Items]              
Payment of deferred financing fees       $ 1,000,000      
Outstanding under credit facility   $ 92,500,000          
Fixed charge coverage ratio, term (in months)   12 months          
Fixed charge coverage ratio   1.1          
Salt Life Acquisition | Promissory Note              
Debt Instrument [Line Items]              
Number of promissory notes issued (debt instruments) | debt_instrument 2            
Aggregate principal of promissory notes $ 22,000,000            
Amount of one-time installment payment $ 9,000,000            
Debt instrument, discounted value   $ 2,400,000          
Salt Life Acquisition | Promissory Note, Maturity Date June 30, 2016 | Promissory Note              
Debt Instrument [Line Items]              
Imputed interest (percent) 1.92%            
Salt Life Acquisition | Promissory Note, Maturity Date June 30, 2019 | Promissory Note              
Debt Instrument [Line Items]              
Imputed interest (percent) 3.62%            
Revolving Credit Facility | Line of Credit              
Debt Instrument [Line Items]              
Maximum borrowing capacity   145,000,000          
Potential maximum credit available under the facility   $ 200,000,000          
Interest rate during period (percent)   4.20%          
Unused borrowing capacity   $ 30,300,000          
Letter of Credit | Line of Credit              
Debt Instrument [Line Items]              
Maximum borrowing capacity   $ 25,000,000