Common and Preferred Stock (Details)	Mar. 31, 2013	Mar. 31, 2012
Common and Preferred Stock
Total number of share authorized	60,000,000
Common stock authorized (in shares)	50,000,000	50,000,000
Preferred stock authorized (in shares)	10,000,000
Preferred stock issued (in shares)	0
Preferred stock outstanding (in shares)	0