Net Loss per Common Share (Details) - Options and Unvested Restricted Stock [Member] - $ / shares	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of anti-dilutive shares excluded from computation of diluted loss per common share (in shares)	2,638,000	1,604,000
Range of exercise prices - lower range limit (in dollars per share)	$ 1.64	$ 0.77
Range of exercise prices - upper range limit (in dollars per share)	$ 24.40	$ 2.63