Stock Options, Restricted Shares and Warrants (Summary of Outstanding Stock Options) (Details) - USD ($)	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Number of Shares
Beginning Balance (shares)	2,017,046	2,426,836	2,716,317
Granted (shares)	0	0	0
Exercised (shares)	(80,000)	(46,410)	(139,407)
Forfeited (shares)	(416,093)	(363,380)	(150,074)
Ending Balance (shares)	1,520,953	2,017,046	2,426,836	2,716,317
Number of Shares, Exercisable (shares)	1,405,653
Weighted Average Exercise Price
Beginning Balance (in dollars per share)	$ 3.32	$ 3.50	$ 3.43
Granted Stock Options (in dollars per share)	0.00	0.00	0.00
Exercised (in dollars per share)	2.20	2.09	2.46
Forfeited (in dollars per share)	3.41	4.68	3.13
Ending Balance (in dollars per share)	3.36	3.32	3.50	$ 3.43
Weighted Average Fair Value of Options Granted (usd per share)	$ 0.00	$ 0.00	$ 0.00	$ 1.32
Aggregate Intrinsic Value, Outstanding	$ 53,760
Aggregate Intrinsic Value, Exercisable	$ 49,536