INCOME TAXES - Additional Information (Details) - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Deferred Income Taxes [Line Items]
Federal and net operating loss carryforward	$ 58,458,000
State net operating loss carryforward	75,496,000
Federal carryforwards subject to indefinite lives	5,230,470
State carryforwards subject to indefinite lives	5,797,009
Federal research and development credits	762,000
State investment tax credits	392,000
Change in valuation allowance	(1,350,000)	$ 3,505,000
Maximum
Deferred Income Taxes [Line Items]
Operating loss carryforwards limitations on use amount	1,103,000
Minimum
Deferred Income Taxes [Line Items]
Operating loss carryforwards limitations on use amount	$ 786,000