Note 11 Computation of Earnings Per Share (Tables)

12 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended March 31,
	2013		2012		2011
Net income	$	7,648	$	30,306	$	36,647
Weighted average shares - basic		31,025		31,344		31,235
Weighted average shares - diluted		31,695		32,496		32,008
Net income per share - basic	$	0.25	$	0.97	$	1.17
Net income per share - diluted	$	0.24	$	0.93	$	1.14