UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2015	Jan. 31, 2014
Net loss	$ (2,816)us-gaap_NetIncomeLoss	$ (574)us-gaap_NetIncomeLoss	$ (9,463)us-gaap_NetIncomeLoss	$ (5,134)us-gaap_NetIncomeLoss
Foreign currency translation adjustment	0	1	0	(23)
Comprehensive loss	$ (2,816)us-gaap_ComprehensiveIncomeNetOfTax	$ (573)us-gaap_ComprehensiveIncomeNetOfTax	$ (9,463)us-gaap_ComprehensiveIncomeNetOfTax	$ (5,157)us-gaap_ComprehensiveIncomeNetOfTax

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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