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Condensed Consolidated Balance Sheets (Parentheticals) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Dec. 31, 2011
Mar. 31, 2011
Statement Of Financial Position [Abstract]    
Preferred stock,par $ 0 $ 0
Preferred stock,shares authorized 5,000,000 5,000,000
Preferred stock,issued 0 0
Common stock,par $ 0 $ 0
Common stock,shares authorized 50,000,000 50,000,000
Common stock,shares issued 11,968,665 11,806,660
Common stock, shares outstanding 11,968,665 11,806,660