v3.7.0.1

Income Taxes - Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2017	Jan. 31, 2017	Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2015
Current:
Federal									$ 0	$ 0	$ (38)
State									39	(77)	182
International									619	556	951
Total									658	479	1,095
Deferred:
Federal									(4,363)	(6,635)	(12,491)
State									(386)	(1,070)	(2,308)
International									(108)	(94)	44
Total									(4,857)	(7,799)	(14,755)
Change in valuation allowance									4,752	7,358	13,714
Provision for (benefit from) income taxes	$ 203	$ 123	$ 92	$ 135	$ 165	$ (163)	$ 124	$ (88)	$ 553	$ 38	$ 54

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