Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Numerator:
Net loss available to common stockholders	$ (2,169)	$ (528)
Denominator:
Common shares	91,643	89,434
Denominator for basic calculation	91,643	89,434
Denominator for diluted calculation	91,643	89,434
Net loss per share:
Basic	$ (0.02)	$ (0.01)
Diluted	$ (0.02)	$ (0.01)