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Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers | 3 Months Ended | 12 Months Ended
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Mar. 31, 2014 | Dec. 31, 2013
Customer A [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |
Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers [Line Items] |  |
Accounts Receivable Percentage by Major Customers | 37.00% | 33.00%
Customer B [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |
Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers [Line Items] |  |
Accounts Receivable Percentage by Major Customers | 23.00% | 12.00%
Customer C [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |
Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers [Line Items] |  |
Accounts Receivable Percentage by Major Customers | 14.00% | 26.00%
Customer Concentration Risk [Member] |  |
Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers [Line Items] |  |
Accounts Receivable Percentage by Major Customers | 10.00% |
Accounts Receivable [Member] |  |
Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers [Line Items] |  |
Accounts Receivable Percentage by Major Customers | 10.00% |

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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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