Stock Options, Restricted Shares and Warrants (Schedule of Shares Available for Grant) (Details) - shares	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
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)	787,686	1,078,600	1,291,996
Shares reserved under new plan (shares)	1,750,000
Shares canceled from old plan (shares)	(168,289)
Granted shares (shares)	(58,484)	(64,960)	(27,931)
Number of shares available for grant, end of period (shares)	1,298,221	787,686	1,078,600
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	0
Forfeited stock options (shares)	67,200	363,380	150,074
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant [Roll Forward]
Restricted shares (shares)	(1,132,392)	(795,805)	(410,496)
Forfeited stock options (shares)	52,500	206,471	74,957