Note 4 - Major Customers (Details)	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014
Note 4 - Major Customers (Details) [Line Items]
Number of Operating Segments	3
Hakuto Co., Ltd. [Member] \| Sales Revenue, Net [Member] \| Customer Concentration Risk [Member]
Note 4 - Major Customers (Details) [Line Items]
Concentration Risk, Percentage	12.00%	11.00%
Texas Instruments Incorporated [Member] \| Sales Revenue, Net [Member] \| Customer Concentration Risk [Member]
Note 4 - Major Customers (Details) [Line Items]
Concentration Risk, Percentage		13.00%

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

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Reference 2: 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=49121117&loc=d3e13531-108611

Reference 3: 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=51801978&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

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-Subparagraph (a)

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