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FINANCING ARRANGEMENTS AND LONG-TERM DEBT - Narrative (Details) - Credit Agreement 2016
3 Months Ended 6 Months Ended
Mar. 31, 2020
USD ($)
installment
Mar. 31, 2018
USD ($)
Mar. 31, 2017
USD ($)
installment
Feb. 10, 2017
Jun. 30, 2018
USD ($)
installment
Jun. 30, 2018
USD ($)
installment
Dec. 01, 2016
USD ($)
Base Rate              
FINANCING ARRANGEMENTS AND LONG-TERM DEBT              
Interest rate basis           Base Rate  
Prime Rate              
FINANCING ARRANGEMENTS AND LONG-TERM DEBT              
Interest rate basis           prime rate  
Federal Funds Rate              
FINANCING ARRANGEMENTS AND LONG-TERM DEBT              
Interest rate basis           Federal Funds Rate  
Applicable margin (as a percent)           0.50%  
Eurodollar Rate              
FINANCING ARRANGEMENTS AND LONG-TERM DEBT              
Interest rate basis           Eurodollar Rate  
Applicable margin (as a percent)           1.00%  
Secured Debt              
FINANCING ARRANGEMENTS AND LONG-TERM DEBT              
Maximum borrowing capacity under senior secured credit facility             $ 110,000,000
Number of quarterly installments | installment     4   8 8  
Periodic repayment   $ 2,062,500 $ 1,375,000        
Outstanding borrowings         $ 99,200,000 $ 99,200,000  
Repayment of term loan facility         $ 3,200,000    
Effective interest rate         5.60% 5.60%  
Percentage of proceeds from asset sales used for mandatory repayments of the debt           100.00%  
Percentage of net proceeds from issuances of debt and equity used for mandatory repayments of the debt           100.00%  
Percentage of net proceeds from insurance recovery and condemnation events used for mandatory repayments of the debt           100.00%  
Secured Debt | Scenario Forecast              
FINANCING ARRANGEMENTS AND LONG-TERM DEBT              
Number of quarterly installments | installment 7            
Periodic repayment $ 2,750,000            
Secured Debt | London Interbank Offered Rate L I B O R              
FINANCING ARRANGEMENTS AND LONG-TERM DEBT              
Interest rate basis       LIBOR      
Revolving Credit Facility              
FINANCING ARRANGEMENTS AND LONG-TERM DEBT              
Maximum borrowing capacity under senior secured credit facility             $ 30,000,000
Outstanding borrowings         $ 4,000,000 $ 4,000,000  
Repayment of term loan facility         $ 1,000,000    
Effective interest rate         5.30% 5.30%  
Maximum | Secured Debt | London Interbank Offered Rate L I B O R              
FINANCING ARRANGEMENTS AND LONG-TERM DEBT              
Applicable margin (as a percent)       4.00%