XML 12 R43.htm IDEA: XBRL DOCUMENT v3.19.3
Note 6 - Debt (Details Textual)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2018
USD ($)
Mar. 31, 2020
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Dec. 31, 2019
Oct. 31, 2019
USD ($)
Jan. 28, 2019
USD ($)
Jun. 27, 2018
USD ($)
Payments of Debt Issuance Costs         $ 358        
Amortization of Debt Issuance Costs         754 1,200        
Interest Income, Other       $ 100 $ 100 100        
Interest Rate Swap [Member]                    
Derivative, Number of Instruments Held, Total     0   0          
Derivative, Notional Amount                 $ 100,000  
Credit Agreement [Member]                    
Line of Credit Facility, Maximum Borrowing Capacity Including Additional Lenders     $ 600,000   $ 600,000          
Debt Instrument Covenant, Issued Qualified Senior Notes     200,000   $ 200,000          
Debt Instrument Covenant, Prior to Issuance of Qualified Senior Notes, Maximum Permitted Consolidated Total Leverage Ratio         5          
Debt Instrument Covenant, Specified Acquisition, Aggregate Consideration     15,000   $ 15,000          
Debt Instrument Covenant, After Issuance of Qualified Senior Notes, Maximum Permitted Consolidated Total Leverage Ratio         5          
Debt Instrument Covenant, After Issuance of Qualified Senior Notes, Based on Occurence of Acquisition, Maximum Permitted Consolidated Total Leverage Ratio         5.5          
Debt Instrument Covenant, Maximum Permitted Consolidated Senior Secured Leverage Ratio         3.5          
Debt Instrument Covenant, Minimum Permitted Consolidated Interest Coverage Ratio         2.5          
Consolidated Total Leverage Ratio         4.24          
Consolidated Interest Coverage Ratio         3.96          
Long-term Debt, Total     258,600   $ 258,600          
Maximum Quarterly Distribution         $ 10,700          
Debt Instrument Covenant, Default, Percentage of General Partner Interest Cease         100.00%          
Write off of Deferred Debt Issuance Cost $ 400                  
Payments of Debt Issuance Costs       100   400        
Amortization of Debt Issuance Costs     $ 300 $ 300 $ 800 $ 800        
Debt Instrument, Interest Rate During Period     5.90% 5.65% 6.20% 5.33%        
Interest Expense, Long-term Debt, Total     $ 4,000 $ 4,100 $ 12,300 $ 12,600        
Credit Agreement [Member] | Ergon [Member]                    
Debt Instrument Covenant, Default, Percentage of Membership Interest Cease         50.00%          
Credit Agreement [Member] | Forecast [Member]                    
Debt Instrument Covenant, Prior to Issuance of Qualified Senior Notes, Maximum Permitted Consolidated Total Leverage Ratio   4.75         5      
Debt Instrument Covenant, Prior to Issuance of Qualified Senior Notes, Based on Occurence of Acquisition, Maximum Permitted Consolidated Total Leverage Ratio             5.25      
Credit Agreement [Member] | Federal Funds Effective Rate [Member]                    
Debt Instrument, Basis Spread on Variable Rate         0.50%          
Credit Agreement [Member] | Eurodollar Rate [Member]                    
Debt Instrument, Basis Spread on Variable Rate         1.00%          
Credit Agreement [Member] | Minimum [Member]                    
Line of Credit Facility, Commitment Fee Percentage         0.375%          
Credit Agreement [Member] | Minimum [Member] | Applicable Margin Based on Eurodollar Rate [Member]                    
Debt Instrument, Basis Spread on Variable Rate         2.00%          
Credit Agreement [Member] | Minimum [Member] | Applicable Margin on Based on Alternate Base Rate [Member]                    
Debt Instrument, Basis Spread on Variable Rate         1.00%          
Credit Agreement [Member] | Maximum [Member]                    
Line of Credit Facility, Commitment Fee Percentage         0.50%          
Credit Agreement [Member] | Maximum [Member] | Applicable Margin Based on Eurodollar Rate [Member]                    
Debt Instrument, Basis Spread on Variable Rate         3.25%          
Credit Agreement [Member] | Maximum [Member] | Applicable Margin on Based on Alternate Base Rate [Member]                    
Debt Instrument, Basis Spread on Variable Rate         2.25%          
Credit Agreement [Member] | Subsequent Event [Member]                    
Line of Credit Facility, Remaining Borrowing Capacity               $ 148,400    
Credit Agreement [Member] | Revolving Credit Facility [Member]                    
Line of Credit Facility, Maximum Borrowing Capacity     $ 400,000   $ 400,000         $ 450,000
Credit Agreement [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member]                    
Long-term Line of Credit, Total               250,600    
Credit Agreement [Member] | Letter of Credit [Member] | Subsequent Event [Member]                    
Letters of Credit Outstanding, Amount               $ 1,000