Stock Purchases Rights, Stock Options and Warrants (Summary of Stock Option Activity) (Details)	6 Months Ended
	Sep. 30, 2015 $ / shares shares
Stock Purchases Rights, Stock Options and Warrants [Abstract]
Options outstanding | shares	1,425,451
Options, Granted | shares	170,250
Options, Expirations | shares	(15)
Options, Exercised | shares	(3,019)
Options outstanding | shares	1,592,667
Weighted Average Exercise Price	$ 20.73
Weighted Average Exercise Price, Granted	38.42
Weighted Average Exercise Price, Expirations	72.85
Weighted Average Exercise Price, Exercised	13.25
Weighted Average Exercise Price	$ 22.75