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INCOME TAXES - COMPANY'S NET DEFERRED TAX ASSETS AND LIABILITIES (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Sep. 30, 2017
--- | --- | ---
Deferred tax assets: |  |
Stock-based compensation | $ 3,067 | $ 3,671
Net operating loss carryforwards | 8,568 | 3,453
Research credit carryforwards | 3,890 | 3,171
AMT credit carryforwards | 0 | 392
Foreign net operating losses | 0 | 386
Other, net | 354 | 770
Total deferred assets | 15,879 | 11,843
Deferred tax liabilities: |  |
Intangibles | (181) | (393)
Foreign deferred liabilities | (8,032) | (280)
Net deferred tax asset | 7,666 | 11,170
Valuation allowance for net deferred tax assets | (472) | (105)
Net deferred tax asset | $ 7,194 | $ 11,065

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