Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Debt (Details Textual)

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Note 8 - Debt (Details Textual)
$ in Thousands
6 Months Ended
Dec. 21, 2018
USD ($)
Dec. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
Long-term Line of Credit, Total  
Revolving Credit Facility [Member] | The Facility [Member]      
Line of Credit Facility, Maximum Borrowing Capacity $ 165,000    
Debt Issuance Costs, Net, Total 600    
Long-term Line of Credit, Total   0  
Interest Expense, Debt, Total   0  
Debt Covenant, Fixed Charge Coverage Ratio, Maximum Unused Availability $ 18,500    
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio 1    
Line of Credit Facility, Remaining Borrowing Capacity   126,400 158,900
Revolving Credit Facility [Member] | The Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Debt Instrument, Basis Spread on Variable Rate 1.00%    
Revolving Credit Facility [Member] | The Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]      
Debt Instrument, Basis Spread on Variable Rate 1.50%    
Revolving Credit Facility [Member] | The Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]      
Debt Instrument, Basis Spread on Variable Rate 2.00%    
Revolving Credit Facility [Member] | The Facility [Member] | Fed Funds Effective Rate Overnight Index Swap Rate [Member]      
Debt Instrument, Basis Spread on Variable Rate 0.50%    
Revolving Credit Facility [Member] | The Facility [Member] | Additional Margin on Variable Rate Option [Member] | Minimum [Member]      
Debt Instrument, Basis Spread on Variable Rate 0.50%    
Revolving Credit Facility [Member] | The Facility [Member] | Additional Margin on Variable Rate Option [Member] | Maximum [Member]      
Debt Instrument, Basis Spread on Variable Rate 1.00%    
Standby Letters of Credit [Member] | The Facility [Member]      
Letters of Credit Outstanding, Amount   $ 5,800 $ 6,100