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SECURED TERM LOAN - Narrative (Details) - USD ($)
Jan. 15, 2019
Mar. 31, 2019
Feb. 14, 2019
Debt Instrument [Line Items]      
Principal amount   $ 40,250,000  
Delayed Draw Facility | Credit Agreement      
Debt Instrument [Line Items]      
Principal amount $ 40,250,000.00 $ 40,250,000.00 $ 40,250,000.00
Maturity term 6 years    
Five year period following initial draw | Delayed Draw Facility | Credit Agreement      
Debt Instrument [Line Items]      
Interest fixed rate 7.25%    
First four months after fifth anniversary | Delayed Draw Facility | Credit Agreement      
Debt Instrument [Line Items]      
Interest fixed rate 0.25%    
Second four months after fifth anniversary | Delayed Draw Facility | Credit Agreement      
Debt Instrument [Line Items]      
Interest fixed rate 0.375%    
Last four months until maturity | Delayed Draw Facility | Credit Agreement      
Debt Instrument [Line Items]      
Interest fixed rate 0.50%