Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Deficit - Schedule of Stock-Based Compensation Expenses (Details)

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Stockholders' Deficit - Schedule of Stock-Based Compensation Expenses (Details) - USD ($)
 3 Months Ended 9 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Total stock-based compensation expense $ 456,000 $ 1,086,000 $ 1,356,000 $ 1,492,000
Research and Development [Member]        
Total stock-based compensation expense 54,000 225,000 162,000 256,000
General and Administrative [Member]        
Total stock-based compensation expense $ 402,000 $ 861,000 $ 1,194,000 $ 1,236,000