Note 6 - Income Taxes (Details) - Changes in the valuation allowance for deferred tax assets (USD $)
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12 Months Ended | ||
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2011
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Valuation Allowance [Line Items] | |||
Balance, | $ 11,148,000 | ||
Deductions/Other | (9,897,000) | (9,445,000) | (4,696,000) |
Balance, | 16,048,000 | 11,148,000 | |
2011 [Member]
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|||
Valuation Allowance [Line Items] | |||
Balance, | 26,741,000 | ||
Charged to Costs and Expenses | (2,500,000) | ||
Deductions/Other | (2,196,000) | ||
Balance, | 22,045,000 | ||
Year 2012 [Member]
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|||
Valuation Allowance [Line Items] | |||
Balance, | 22,045,000 | ||
Charged to Costs and Expenses | (4,900,000) | ||
Deductions/Other | (4,545,000) | ||
Balance, | 12,600,000 | ||
Year 2013 [Member]
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|||
Valuation Allowance [Line Items] | |||
Balance, | 12,600,000 | ||
Charged to Costs and Expenses | (5,300,000) | ||
Deductions/Other | (4,597,000) | ||
Balance, | $ 2,703,000 |
X | ||||||||||
- Definition
Amount of other deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. For example, but not limited to, acquisition-date income tax benefits or expenses recognized from changes in the acquirer's valuation allowance for its previously existing deferred tax assets resulting from a business combination and adjustments to beginning-of-year balance of a valuation allowance because of a change in circumstance causing a change in judgment about the realizability of the related deferred tax asset in future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount after allocation of valuation allowances of noncurrent deferred tax asset attributable to deductible temporary differences and carryforwards. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The amount of the change in the period in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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