OTHER ASSETS (Details) - USD ($) $ in Thousands	Oct. 31, 2016	Apr. 30, 2016
Prepaid Expense and Other Assets	$ 3,173	$ 3,478
Prepaid Expenses [Member]
Prepaid expenses	2,139	2,358
Deferred Order Entry Costs [Member]
Deferred order entry costs	769	845
Other Intangible Assets [Member]
Other	$ 265	$ 275