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Note 3 - Inventories (Detail) - The change in the inventory reserve (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Sep. 30, 2012
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Sep. 30, 2011
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Sep. 30, 2010
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| Balance Begin | $ 75,952 | $ 15,464 | $ 95,574 |
| Charged to Costs and Expenses | 128,360 | 177,726 | (2,066) |
| Write-offs | (154,502) | (117,237) | (78,044) |
| Balance End | $ 49,810 | $ 75,952 | $ 15,464 |
| X | ||||||||||
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- Definition
Certain changes made in the current period to the value and amount of inventory reported. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This element represents a sum total of expenses not separately reflected on the income statement for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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