Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY - (Details)

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STOCKHOLDERS' EQUITY - (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 09, 2020
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Jun. 30, 2020
Increase (Decrease) in Stockholders' Equity            
Balance   $ 35,886 $ 14,688 $ 7,365 $ 1,752 $ 1,752
Stock-based compensation   530 675 2,305 2,734  
Reclassification of derivative liability for authorized share deficiency   (3,591)   3,591    
Fair value of warrants issued to consultants for services   2 3 8 76  
Issuance of Units for cash       41,000    
Issuance of Units for cash (In shares) 2,500,000          
Advisory fees and other offering costs       (3,550) (1,500)  
Issuance of common stock for services       7    
Net loss   (3,695) (5,040) (14,412) (16,786) 20,300
Balance   29,132 10,326 29,132 10,326 7,365
Common Stock            
Increase (Decrease) in Stockholders' Equity            
Balance   $ 8 $ 6 $ 6 $ 4 $ 4
Balance (in shares)   8,352 5,867 5,867 4,208 4,208
Issuance of Units for cash       $ 2    
Issuance of Units for cash (In shares)       2,485    
Balance   $ 8 $ 6 $ 8 $ 6 $ 6
Balance (in shares)   8,352 5,867 8,352 5,867 5,867
Additional Paid-in Capital            
Increase (Decrease) in Stockholders' Equity            
Balance   $ 193,831 $ 153,331 $ 154,595 $ 128,651 $ 128,651
Stock-based compensation   530 675 2,305 2,734  
Reclassification of derivative liability for authorized share deficiency   (3,591)   3,591    
Fair value of warrants issued to consultants for services   2 3 8 76  
Issuance of Units for cash       40,998    
Advisory fees and other offering costs       (3,550) (1,500)  
Issuance of common stock for services       7    
Net loss   0 0 0 0  
Balance   190,772 154,009 190,772 154,009 154,595
Accumulated Deficit            
Increase (Decrease) in Stockholders' Equity            
Balance   (157,953) (138,649) (147,236) (126,903) (126,903)
Stock-based compensation   0 0 0 0  
Reclassification of derivative liability for authorized share deficiency   0   0    
Fair value of warrants issued to consultants for services   0 0 0 0  
Issuance of Units for cash       0    
Advisory fees and other offering costs       0 0  
Issuance of common stock for services       0    
Net loss   (3,695) (5,040) (14,412) (16,786)  
Balance   $ (161,648) $ (143,689) $ (161,648) $ (143,689) $ (147,236)