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Note 6 - Inventories (Details) - Components of Inventory (USD $)
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Mar. 31, 2015
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Sep. 30, 2014
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| Components of Inventory [Abstract] | ||
| Raw materials | $ 3,681,674us-gaap_InventoryRawMaterials | $ 3,729,160us-gaap_InventoryRawMaterials |
| Work-in-progress | 383,235us-gaap_InventoryWorkInProcess | 292,557us-gaap_InventoryWorkInProcess |
| Finished goods | 1,099,312us-gaap_InventoryFinishedGoods | 1,368,625us-gaap_InventoryFinishedGoods |
| $ 5,164,221us-gaap_InventoryNet | $ 5,390,342us-gaap_InventoryNet |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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