Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY - Additional Information (Details)

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STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
 1 Months Ended 2 Months Ended 3 Months Ended 12 Months Ended
Jul. 23, 2019
Jun. 19, 2019
Jul. 23, 2019
Aug. 31, 2019
Sep. 30, 2020
Sep. 30, 2019
Jun. 30, 2020
Class of Stock [Line Items]              
Qualified expenditures           $ 0.7  
Share Price         $ 14.50    
Volume weighted average closing price of common stock         75.00%    
Purchase of Common Stock         $ 10.0    
Restricted cash           3.1  
Other Investors [Member]              
Class of Stock [Line Items]              
Stock Issued During Period, Shares, New Issues       279,000      
Share Price       $ 14.50      
Gross proceeds from issuance of common stock       $ 4.1      
Other Investors [Member] | Maximum              
Class of Stock [Line Items]              
Stock Issued During Period, Value, New Issues   $ 10.0          
Investor [Member]              
Class of Stock [Line Items]              
Stock Issued During Period, Shares, New Issues 1,400,000   1,400,000        
Stock Issued During Period, Value, New Issues   $ 20.0          
Proceeds from Stock Options Exercised $ 14.5            
Share Price $ 14.50   $ 14.50        
Gross proceeds from issuance of common stock $ 20.0            
Amount of advisory fee payable       $ 1.5      
Percent of advisory fee payable       6.00%      
Private Placement [Member]              
Class of Stock [Line Items]              
Stock Issued During Period, Shares, New Issues             262,000
Gross proceeds from issuance of common stock             $ 3.8
Private Placement [Member] | Investor [Member]              
Class of Stock [Line Items]              
Net proceeds from private placement           $ 22.6