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Condensed Consolidated Statements Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Condensed Consolidated Statements of Comprehensive Loss
Net loss	$ (6,974)	$ (9,445)	$ (14,850)	$ (18,863)
Other comprehensive (loss) income:
Unrealized (loss) gains on available-for-sale securities		(6)	4	8
Total other comprehensive (loss) income:		(6)	4	8
Comprehensive loss	$ (6,974)	$ (9,451)	$ (14,846)	$ (18,855)

X

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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