Going Concern and Liquidity (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Cash $ 187,000 $ 748,000 $ 187,000 $ 748,000 $ 579,000 $ 2,424,000
Accumulated deficit (98,771,000)   (98,771,000)   (94,596,000)  
Total Current Liabilities 7,811,000   7,811,000   7,296,000  
Upfront payment received     400,000    
Total budgeted expenditures     11,500,000      
Due to related party 3,500,000   3,500,000      
Net loss (2,625,000) $ (3,979,000) (4,175,000) (6,029,000)    
Net cash used in operating activities     (1,444,000) (3,973,000)    
Working capital (deficit) $ (7,600,000)   $ (7,600,000)   $ (6,700,000)  
Convertible preferred stock, shares outstanding 1,440   1,440   1,196  
Proceeds from exercise of warrants     $ 1,152,000    
Preferred stock issued, shares 0   0   0 0
Preferred stock, shares outstanding (in shares) 0   0     0
Securities Purchase Agreement [Member] | Series 1-4 [Member] | Series 3 warrant [Member]            
Proceeds from exercise of warrants     $ 1,152,000    
Preferred stock issued, shares 1,192   1,192    
Preferred stock, shares outstanding (in shares) 6,528   6,528    
Warrants, Exercised 1,192   1,192