Note 15 Segment and Geographic Information (Narratives) (Details)	3 Months Ended
	Jun. 30, 2013 N	Jun. 30, 2012 N
Segment Reporting [Abstract]
Top Customer Percentage More Than 10% of Total Revenue	12.90%	12.40%
Second Customer Percentage More Than 10% of Total Revenue	11.60%	11.70%
Number of Major Customers	2	2