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Income Taxes | 12 Months Ended
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Sep. 30, 2013
Income Tax Disclosure [Abstract] |
Income Taxes | 8. INCOME TAXES: The components of our benefit from income taxes consisted of the following for the fiscal years ended September 30,
|  | 2011 |  |  | 2012 |  |  | 2013 |
|  | (Amounts in thousands) |
Current benefit: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | (235 | ) |  | $ | (116 | ) |  | $ | 101 |
State |  |  | (132 | ) |  |  | (60 | ) |  |  | (995 | )
Total current benefit |  |  | (367 | ) |  | $ | (176 | ) |  | $ | (894 | )
Deferred benefit: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | — |  |  |  | — |  |  |  | — |
State |  |  | — |  |  |  | — |  |  |  | — |
Total deferred benefit |  |  | — |  |  |  | — |  |  |  | — |
Total income tax benefit |  | $ | (367 | ) |  | $ | (176 | ) |  | $ | (894 | )
Below is a reconciliation of the statutory federal income tax rate to our effective tax rate for the fiscal years ended September 30,
|  | 2011 |  |  | 2012 |  |  | 2013 |
Federal tax (benefit) provision |  |  | (35.0 | )% |  |  | 35.0 | % |  |  | 35.0 | %
State taxes, net of federal effect |  |  | (6.8 | )% |  |  | (16.8 | )% |  |  | (0.7 | )%
Stock based compensation |  |  | 0.7 | % |  |  | 7.5 | % |  |  | 0.6 | %
Valuation allowance |  |  | 39.5 | % |  |  | (50.2 | )% |  |  | (45.0 | )%
Federal NOL carryback |  |  | (2.0 | )% |  |  | (12.6 | )% |  |  | 0.0 | %
Foreign rate differential |  |  | 0.0 | % |  |  | 15.4 | % |  |  | 2.9 | %
Other |  |  | 0.5 | % |  |  | 2.7 | % |  |  | 0.9 | %
Effective tax rate |  |  | (3.1 | )% |  |  | (19.0 | )% |  |  | (6.3 | )%
Deferred income taxes reflect the impact of temporary differences between the amount of assets and liabilities recognized for financial reporting purposes and such amounts recognized for income tax purposes. The tax effects of these temporary differences representing the components of deferred tax assets (liabilities) at September 30,
|  | 2012 |  |  | 2013 |
|  | (Amounts in thousands) |
Current deferred tax assets: |  |  |  |  |  |  |  |
Inventories |  | $ | 1,644 |  |  | $ | 1,494 |
Accrued expenses |  |  | 651 |  |  |  | 1,269 |
Current deferred tax assets |  |  | 2,295 |  |  |  | 2,763 |
Valuation allowance |  |  | (2,295 | ) |  |  | (2,763 | )
Net current deferred tax assets |  | $ | — |  |  | $ | — |
Long-term deferred tax assets: |  |  |  |  |  |  |  |
Depreciation and amortization |  | $ | 11,945 |  |  | $ | 8,275 |
Stock based compensation |  |  | 4,177 |  |  |  | 4,216 |
FIN 48 deferred tax asset |  |  | 482 |  |  |  | 70 |
Tax loss carryforwards |  |  | 29,196 |  |  |  | 26,726 |
Other |  |  | 182 |  |  |  | 294 |
Long-term deferred tax assets |  |  | 45,982 |  |  |  | 39,581 |
Valuation allowance |  |  | (45,982 | ) |  |  | (39,581 | )
Net long-term deferred tax assets |  | $ | — |  |  | $ | — |
Pursuant to ASC 740, we must consider all positive and negative evidence regarding the realization of deferred tax assets, including past operating results and future sources of taxable income. Under the provisions of ASC 740, we determined that a full valuation allowance was needed given cumulative losses in recent years excluding the Deepwater Horizon recoveries. The total valuation allowance at September 30, 2012 and 2013 was $48.3 million and $42.3 million, respectively. Under ASC 740, the impact of an uncertain tax position taken or expected to be taken on an income tax return must be recognized in the financial statements at the largest amount that is more likely than not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized in the financial statements unless it is more likely than not of being sustained. As of September 30, 2012 and 2013, we had approximately $1.5 million and $224,000, respectively, of gross unrecognized tax benefits, of which approximately $1.0 million and $154,000, respectively, if recognized, would impact the effective tax rate before considering a change in valuation allowance. The reconciliation of the total amount recorded for unrecognized tax benefits at the beginning and end of the fiscal years ended September 30, 2012 and 2013 is as follows:
|  | 2012 |  |  | 2013 |
|  | (Amounts in thousands) |
Unrecognized tax benefits at the beginning of the year |  | $ | 1,581 |  |  | $ | 1,498 |
Increases in tax positions for prior years |  |  | 46 |  |  |  | 34 |
Decreases in tax positions for prior years |  |  | (32 | ) |  |  | (1,308 | )
Lapse of statute of limitations |  |  | (97 | ) |  |  | 0 |
Unrecognized tax benefits at September 30, |  | $ | 1,498 |  |  | $ | 224 |
Consistent with our prior practices, we recognize interest and penalties related to uncertain tax positions as a component of income tax expense. As of September 30, 2012 and 2013, interest and penalties represented approximately $673,000 and $100,000, respectively, of the gross unrecognized tax benefits. We are subject to tax by both federal and state taxing authorities. Until the respective statutes of limitations expire, we are subject to income tax audits in the jurisdictions in which we operate. We are no longer subject to U.S. federal tax examinations for fiscal years prior to 2010, and we are not subject to audits prior to the 2009 fiscal year for the majority of the state jurisdictions. It is reasonably possible that a change to the total amount of unrecognized tax benefits could occur in the next 12 months based on examinations by tax authorities, the expiration of statutes of limitations, or potential settlements of outstanding positions.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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