CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2012	Mar. 31, 2011
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	47,160	50,043
Treasury stock, common shares	4,648	1,728