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Note 8 - Customer and Geographic Information (Details) - Revenue Percentage by Major Customers | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Customer A [Member] |  |  |  |
Note 8 - Customer and Geographic Information (Details) - Revenue Percentage by Major Customers [Line Items] |  |  |  |
Revenue Percentage by Major Customers | 32.00% | 39.00% | 32.00% | 42.00%
Customer B [Member] |  |  |  |
Note 8 - Customer and Geographic Information (Details) - Revenue Percentage by Major Customers [Line Items] |  |  |  |
Revenue Percentage by Major Customers | 23.00% | 20.00% | 19.00% | 20.00%
Customer C [Member] |  |  |  |
Note 8 - Customer and Geographic Information (Details) - Revenue Percentage by Major Customers [Line Items] |  |  |  |
Revenue Percentage by Major Customers | 18.00% | 12.00% | 21.00% | 12.00%

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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=28364263&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=28364263&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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