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Note 15 - Major Customers, Suppliers, Segment and Related Information (Details) | 12 Months Ended |
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Sep. 30, 2014 | Sep. 30, 2012 | Sep. 30, 2014 Customer 1 [Member] Sales Revenue, Net [Member] Customer Concentration Risk [Member] | Sep. 30, 2013 Customer 1 [Member] Sales Revenue, Net [Member] Customer Concentration Risk [Member] | Sep. 30, 2013 Customer 2 [Member] Sales Revenue, Net [Member] Customer Concentration Risk [Member] | Sep. 30, 2013 Customer 3 [Member] Sales Revenue, Net [Member] Customer Concentration Risk [Member] | Sep. 30, 2014 Supplier Concentration Risk [Member]
Note 15 - Major Customers, Suppliers, Segment and Related Information (Details) [Line Items] |  |  |  |  |  |  |
Number of customers, recorded more than 10% of revenue | 1 | 3 |  |  |  |  |
Concentration Risk, Percentage |  |  | 16.00% | 15.00% | 14.00% | 10.00% |
Number of Major Suppliers |  |  |  |  |  |  | 1
Number of Reportable Segments | 1 |  |  |  |  |  |

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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