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INCOME TAXES - Components of deferred tax assets (Details) - USD ($) | Sep. 30, 2020 | Sep. 30, 2019
--- | --- | ---
Deferred tax assets (liabilities): |  |
Stock based compensation | $ 650,000 | $ 2,120,000
Depreciation and amortization | 247,000 | 232,000
Net operating loss carry forward | 20,115,000 | 17,499,000
Impairment of intangibles | 187,000 | 0
Tax credits | 1,566,000 | 1,227,000
Other | 99,000 | 355,000
Less: valuation allowance | (22,864,000) | (21,433,000)
Net deferred tax asset | $ 0 | $ 0

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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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