Note 6 - Major Customers (Details)	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012
Texas Instruments Incorporated [Member]
Note 6 - Major Customers (Details) [Line Items]
Concentration Risk, Percentage	11.00%	19.00%
Teradyne Inc [Member]
Note 6 - Major Customers (Details) [Line Items]
Concentration Risk, Percentage		14.00%

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

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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