Marketable Securities (Summary of available-for-sale securities ) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Marketable Securities, Realized Gain (Loss)	$ 6,000	$ 25,000
Aggregate Fair Value, Securities in a continuous loss position for less than 12 months	5,508,000
Aggregate Fair Value, Securities in a continuous loss position for more than 12 months	4,089,000
Aggregate Fair Value	9,597,000
Unrealized Losses, Securities in a continuous loss position for less than 12 months	67,000
Unrealized Losses, Securities in a continuous loss position for more than 12 months	101,000
Unrealized Losses	168,000
Foreign exchange contracts
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	19,454,000		$ 19,402,000
Gross Unrealized Gains	360,000		525,000
Gross Unrealized Losses	168,000		60,000
Estimated Fair Value	$ 19,646,000		$ 19,867,000