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Note 8 - Customer and Geographic Information (Tables) | 3 Months Ended
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Mar. 31, 2014
Segment Reporting [Abstract] |
Disclosure on Geographic Areas, Description of Revenue from External Customers |
|  | Three Months Ended March 31, |
Customer |  | 2014 |  |  | 2013 |
A |  |  | 45 | % |  |  | 33 | %
B |  |  | 19 | % |  |  | 16 | %
C |  |  | 13 | % |  |  | 25 | %
Disclosure on Geographic Areas, Long-Lived Assets |
Customer |  | March 31, 2014 |  |  | December 31, 2013 |
A |  |  | 37 | % |  |  | 33 | %
B |  |  | 23 | % |  |  | 12 | %
C |  |  | 14 | % |  |  | 26 | %
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2014 |  |  | 2013 |
|  | Revenues |  |  | Percentage of Revenues |  |  | Revenues |  |  | Percentage of Revenues |
North America |  | $ | 11,399 |  |  |  | 42 | % |  | $ | 9,866 |  |  |  | 41 | %
Germany |  |  | 9,100 |  |  |  | 34 |  |  |  | 4,625 |  |  |  | 19 |
South Korea |  |  | 2,260 |  |  |  | 8 |  |  |  | 4,912 |  |  |  | 21 |
Japan |  |  | 1,713 |  |  |  | 6 |  |  |  | 2,261 |  |  |  | 9 |
Rest of Asia |  |  | 1,495 |  |  |  | 6 |  |  |  | 1,544 |  |  |  | 6 |
Rest of Europe |  |  | 1,119 |  |  |  | 4 |  |  |  | 902 |  |  |  | 4 |
Total revenue |  | $ | 27,086 |  |  |  | 100 | % |  | $ | 24,110 |  |  |  | 100 | %
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] |
|  | March 31, 2014 |  |  | December 31, 2013 |
North America |  | $ | 7,102 |  |  | $ | 6,578 |
Asia |  |  | 354 |  |  |  | 364 |
Europe |  |  | 126 |  |  |  | 122 |
Total long-lived assets, net |  | $ | 7,582 |  |  | $ | 7,064 |

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- Definition Disclosure about revenues from external customers (1) attributed to the entity's country of domicile and (2) attributed to all foreign countries in total from which the entity derives revenues. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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- Definition Disclosures about long-lived assets (except financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets) that are (1) located in the entity's country of domicile, and (2) located in all foreign countries in which the entity holds assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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- Definition Tabular disclosure of the names of foreign countries in which material long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets are located, and amount of such long-lived assets located in that country or foreign geographic area. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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- Definition Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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