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Net Loss per Common Share - Schedule of Calculation of Basic and Diluted Net Loss per Common Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Net loss applicable to common stockholders	$ (5,461)us-gaap_NetIncomeLoss	$ (1,217)us-gaap_NetIncomeLoss	$ (7,097)us-gaap_NetIncomeLoss	$ (3,221)us-gaap_NetIncomeLoss
Basic net loss per common stock	$ (0.20)us-gaap_EarningsPerShareBasic	$ (0.05)us-gaap_EarningsPerShareBasic	$ (0.27)us-gaap_EarningsPerShareBasic	$ (0.13)us-gaap_EarningsPerShareBasic
Weighted-average common shares used in computing basic net loss per common share	26,657	25,356	26,422	25,267
Weighted-average common shares used in computing diluted net loss per common share	26,657	25,356	26,422	25,267
Diluted net loss per common stock	$ (0.20)us-gaap_EarningsPerShareDiluted	$ (0.05)us-gaap_EarningsPerShareDiluted	$ (0.27)us-gaap_EarningsPerShareDiluted	$ (0.13)us-gaap_EarningsPerShareDiluted

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

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

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