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Consolidated Balance Sheets (Parenthetical)
Mar. 31, 2014
Mar. 31, 2013
Preferred stock, shares authorized 5,000,000  
Common stock, shares authorized 100,000,000  
Common stock, shares outstanding 23,216,312  
Common Stock [Member]
    
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 23,216,312 23,343,973
Common stock, shares outstanding 23,216,312 23,343,973
Series A Junior Participating Preferred Stock [Member]
    
Preferred stock, shares authorized 500,000 500,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Series B 6.75% Convertible Perpetual Preferred Stock [Member]
    
Preferred stock, shares authorized 220,000 220,000
Preferred stock, shares issued 219,999 219,999
Preferred stock, shares outstanding 219,999 219,999