INCOME TAXES - Components of deferred tax assets (Details) - USD ($)	Sep. 30, 2019	Sep. 30, 2018
Deferred tax assets (liabilities):
Stock based compensation	$ 1,960,000	$ 1,947,000
Depreciation and amortization	277,000	339,000
Net operating loss carry forward	14,091,000	13,248,000
Tax credits	1,171,000	944,000
Other	397,000	69,000
Less: valuation allowance	(17,896,000)	(16,547,000)
Net deferred tax asset	$ 0	$ 0