Consolidated Balance Sheet Parentheticals (USD $) In Thousands, except Per Share data	Mar. 31, 2011	Mar. 31, 2010
Stockholders' equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	50,043	51,449
Treasury stock, common shares	1,728	2,579