| **Income Taxes (Details 1) - USD ($) $ in Thousands** | Sep. 30, 2015 | Sep. 30, 2014 |
|-------------------------------------------------------|---------------|---------------|
| **Current deferred income tax asset:**                |          |          |
| Net operating loss carryforwards and tax credits      | $ 391         | $ 98          |
| Accrued liabilities                                   | 753           | 122           |
| Valuation allowance                                   | (162)         | (136)         |
| Net current deferred tax asset                        | 982           | 84            |
| **Deferred income tax asset (liability):**            |          |          |
| Net operating loss carry forwards and tax credits     | 12,524        | 16,556        |
| Stock based compensation                              | 767           | 646           |
| Fixed and intangible assets                           | (2,379)       | (2,176)       |
| Other items, net                                      | 5             | 488           |
| Valuation allowance                                   | (1,592)       | (11,001)      |
| Net deferred tax asset                                | $ 9,325       | $ 4,513       |

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Represents the amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards and the amount of future tax deductions arising from all unused tax credit carryforwards.
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Represents the amount of deferred tax liability attributable to taxable temporary differences from fixed and intangible assets.
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| - Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.
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| - Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences expected to be realized or consumed within one year or operating cycle, if longer.
+ References
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| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.
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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.
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Amount of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer.
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