Income Taxes (Details) - USD ($)	Dec. 31, 2019	Jun. 30, 2019	Jun. 30, 2018
Deferred tax assets:
Federal net operating loss	$ 13,022,000	$ 21,807,000	$ 11,123,000
State net operating loss	7,912,000	8,252,000	6,678,000
Research and development tax credits	1,499,000	1,230,000	1,081,000
Capitalized R&D	3,168,000
Nonqualified Stock Options	172,000
Accruals	133,000	206,000	13,000
Other	45,000	46,000	37,000
Less: valuation allowance	(25,951,000)	(23,289,000)	(18,932,000)
Total