Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Debt (Details Textual)

v3.19.3
Note 8 - Debt (Details Textual)
$ in Thousands
3 Months Ended
Dec. 21, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
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 $ 2,018,000  
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   148,400   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   $ 5,900   $ 6,100