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Income Taxes - Company's Net Deferred Tax Assets and Liabilities (Detail) - USD ($) | Sep. 30, 2016 | Sep. 30, 2015
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 7,095,000 | $ 9,825,000
Foreign net operating losses | 327,000 | 258,000
Stock based compensation | 2,898,000 | 2,333,000
AMT credit carryforwards | 279,000 | 149,000
Other, net | 320,000 | 305,000
Research credit carryforwards | 44,000 | 44,000
Total deferred assets | 10,963,000 | 12,914,000
Deferred tax liabilities: |  |
Intangibles | (473,000) | (603,000)
Foreign deferred liabilities | (356,000) | (415,000)
Net deferred tax asset | 10,134,000 | 11,896,000
Valuation allowance for net deferred tax assets | (10,163,000) | (12,053,000)
Net deferred tax liability | $ (29,000) | $ (157,000)

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