Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Per Share data	Sep. 30, 2011	Mar. 31, 2011
Shareholders' equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	58,818	58,068
Common stock, shares outstanding	58,818	58,068

Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.

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