Share-based Compensation (Details 1) (Stock Options [Member], USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended
	Sep. 30, 2014	Sep. 30, 2014
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at Beginning of Period, Number of Options		627,500
Outstanding at Beginning of Period, Weighted Average Exercise Price		$ 15.26
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted		0
Share-based Compensation Arrangements by Share Based Payment Award Non Option Equity Instruments Grants in Period Weighted Average Exercise Price		$ 0.00
Exercised, Number of Options		(15,000)
Exercised, Weighted-Average Exercise Price		$ 13.76
Cancelled/expired, Number of options		(30,000)
Cancelled/Expired, Weighted-Average Exercise Price		$ 13.11
Outstanding and exercisable at End of Period, Number of Options	582,500	582,500
Outstanding and exercisable at End of Period, Weighted Average Exercise Price	$ 15.41	$ 15.41
Remaining Contractual Term, Outstanding and exercisable at End of Period	1 year 7 months 10 days
Aggregate Intrinsic Value, Outstanding and exercisable at End of Period	$ 0	$ 0