Note 12 - Major Customers (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

	Revenue									Accounts Receivable, Net
	Year ended December 31,									As of December 31,
Customers	2012			2011			2010			2012			2011
A		32	%		27	%		21	%		34	%		33	%
B		*			*			*			11	%		*