Stock Options, Restricted Shares and Warrants (Summary of Outstanding Stock Options) (Details) - USD ($)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares, Beginning Balance (shares)	2,426,836	2,716,317	3,312,523
Number of Shares, Granted (shares)	0	0	305,544
Number of Shares, Exercised (shares)	(46,410)	(139,407)	(446,059)
Number of Shares, Forfeited (shares)	(363,380)	(150,074)	(455,691)
Number of Shares, Ending Balance (shares)	2,017,046	2,426,836	2,716,317	3,312,523
Number of Shares, Exercisable (shares)	1,811,146
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, Beginning Balance (in dollars per share)	$ 3.50	$ 3.43	$ 3.42
Weighted Average Exercise Price, Granted Stock Options (in dollars per share)	0.00	0.00	1.98
Weighted Average Exercise Price, Exercised (in dollars per share)	2.09	2.46	2.25
Weighted Average Exercise Price, Forfeited (in dollars per share)	4.68	3.13	3.26
Weighted Average Exercise Price, Ending Balance (in dollars per share)	3.32	3.50	3.43	$ 3.42
Weighted Average Fair Value of Options Granted (usd per share)	$ 0.00	$ 0.00	$ 1.32	$ 1.23
Aggregate Intrinsic Value, Outstanding	$ 0
Aggregate Intrinsic Value, Exercisable	$ 0