Summary of Significant Accounting Policies - EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Numerator:
Net loss	$ (2,004)	$ (4,663)	$ (9,256)	$ (27,368)
Denominator:
Weighted-average common shares outstanding (in shares)	27,671,633	21,882,741	27,584,288	21,791,184
Weighted-average effect of assumed conversion of stock options and restricted shares (in shares)	0	0	0	0
Weighted-average common shares and common share equivalents outstanding (in shares)	27,671,633	21,882,741	27,584,288	21,791,184
Net income (loss) per common share:
Basic net income (loss) per share attributable to common shareholders (in dollars per share)	$ (0.07)	$ (0.21)	$ (0.34)	$ (1.26)
Diluted net income (loss) per share (in dollars per share)	$ (0.07)	$ (0.21)	$ (0.34)	$ (1.26)