Note 4 - Major Customers (Details) (Hakuto Co., Ltd. [Member], Customer Concentration Risk [Member], Sales Revenue, Net [Member])	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Hakuto Co., Ltd. [Member] \| Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Note 4 - Major Customers (Details) [Line Items]
Concentration Risk, Percentage	11.00%	10.00%

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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