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DEBT OBLIGATIONS AND COLLATERAL REQUIREMENTS (Details) - USD ($)
May 01, 2019
Jun. 30, 2019
Debt Instrument [Line Items]    
Credit facility, maximum borrowing capacity   $ 10,000,000
Credit facility, increase available capacity under the credit agreement   50,000,000
Letter of credit    
Debt Instrument [Line Items]    
Credit facility, maximum borrowing capacity   $ 5,000,000
Line of Credit | LIBOR    
Debt Instrument [Line Items]    
Debt instrument, variable rate 1.15%