Condensed Consolidated Balance Sheets Parenthetical (USD $)	Sep. 30, 2013	Mar. 31, 2013
Series preferred stock, with or without par value, 50,000,000 shares authorized:
Preferred stock:
Preferred stock, shares authorized	50,000,000	50,000,000
Series A preferred stock, with no par value, 6,100,000 authorized; 6,100,000 shares issued and none outstanding as of September 30 and March 31, 2013
Preferred stock:
Preferred stock, shares authorized	6,100,000	6,100,000
Preferred stock, shares issued	6,100,000	6,100,000
Preferred stock, shares outstanding	0	0
Series B preferred stock, with no par value, 100,000 shares authorized; none issued and outstanding as of September 30 and March 31, 2013
Preferred stock:
Preferred stock, shares authorized	100,000	100,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Series common stock, with or without par value, 150,000,000 shares authorized:
Common stock:
Common stock, shares authorized	150,000,000	150,000,000
Series A common stock of $0.25 par value, 10,000,000 shares authorized; none issued and outstanding as of September 30 and March 31, 2013
Common stock:
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares, issued	0	0
Common stock, shares, outstanding	0	0
Common stock, par or stated value per share	$ 0.25	$ 0.25
Common stock of $0.25 par value, 150,000,000 shares authorized; 41,985,700 issued and 19,607,788 outstanding as of September 30 and March 31, 2013
Common stock:
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares, issued	41,985,700	41,985,700
Common stock, shares, outstanding	19,607,788	19,607,788
Common stock, par or stated value per share	$ 0.25	$ 0.25
Cost of common shares in treasury, net (22,377,912 shares as of September 30 and March 31, 2013)
Treasury stock:
Treasury stock, shares	22,377,912	22,377,912
Cost of preferred shares in treasury, net (6,100,000 shares as of September 30 and March 31, 2013)
Treasury stock:
Treasury stock, shares	6,100,000	6,100,000