Quarterly report pursuant to Section 13 or 15(d)

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

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Stockholders' Equity (Deficit) - Schedule of Stock-Based Compensation Expenses (Details) - USD ($)
 3 Months Ended 9 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Total stock-based compensation expense $ 228,000 $ 456,000 $ 650,000 $ 1,356,000
Research and Development [Member]        
Total stock-based compensation expense 48,000 54,000 146,000 162,000
General and Administrative [Member]        
Total stock-based compensation expense $ 180,000 $ 402,000 $ 504,000 $ 1,194,000