Note 14 Segment Information (Narratives) (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2012 N	Dec. 31, 2011 N	Dec. 31, 2012 N	Dec. 31, 2011 N
Segment Reporting [Abstract]
Top Customer Percentage More Than 10% of Total Revenue	13.60%	11.30%	13.30%	12.00%
Second Customer Percentage More Than 10% of Total Revenue			10.50%	10.50%
Number of Major Customers	1	1	2	2