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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Sep. 30, 2018
--- | --- | ---
Deferred income tax assets: |  |
Net operating loss carry forwards | $ 3,926 | $ 5,005
AMT credit carryforward | 183 | 185
Stock based compensation | 140 | 140
Accrued expenses | 1,666 | 1,202
Other items, net | 45 | 45
Total deferred tax asset | 5,960 | 6,577
Deferred tax liability: |  |
Equipment and intangible assets | (3,615) | (2,440)
Net deferred tax asset | $ 2,345 | $ 4,137

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