Share-Based Payments - Summary of option activity under the equity plans (Details 1) - Stock options $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2017 USD ($) $ / shares shares
Shares
Exercised	(9)
Forfeited	(15)
Equity plans
Shares
Outstanding at March 31, 2016	357
Granted
Exercised	(9)
Forfeited	(15)
Outstanding at March 31, 2017	333
Exercisable at March 31, 2017	244
Weighted Average Exercise Price
Outstanding at March 31, 2016 | $ / shares	$ 10.07
Granted | $ / shares
Exercised | $ / shares	5.76
Forfeited | $ / shares	12.36
Outstanding at March 31, 2017 | $ / shares	10.08
Exercisable at March 31, 2017 | $ / shares	$ 8.78
Weighted Average Remaining Contractual Term
Outstanding at March 31, 2017	4 years 9 months
Exercisable at March 31, 2017	3 years 9 months 15 days
Aggregate Intrinsic Value
Outstanding at March 31, 2017 | $	$ 663
Exercisable at March 31, 2017 | $	$ 663