Stock Options, Restricted Shares and Warrants (Schedule of Shares Available for Grant) (Details) - shares	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant [Roll Forward]
Number of shares available for grant, beginning of period (shares)	1,078,600	1,291,996	1,632,778
Granted shares (shares)	(64,960)	(27,931)	(33,641)
Number of shares available for grant, end of period (shares)	787,686	1,078,600	1,291,996
Common stock options
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant [Roll Forward]
Granted stock options (shares)	0	0	(305,544)
Forfeited stock options (shares)	363,380	150,074	455,691
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant [Roll Forward]
Restricted shares (shares)	(795,805)	(410,496)	(526,663)
Forfeited stock options (shares)	206,471	74,957	69,375