Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies and Estimates (Schedule of Basic and Diluted Net Income (Loss) Per Share) (Details)

v2.4.1.9
Summary of Significant Accounting Policies and Estimates (Schedule of Basic and Diluted Net Income (Loss) Per Share) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Numerator:      
Net loss $ (33,769)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (11,887)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (15,042)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Denominator:      
Weighted-average common shares outstanding used in computing basic and diluted net loss per share 78,264,040us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 20,977,117us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 20,167,662us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Net loss per share, basic and diluted $ (0.43)us-gaap_EarningsPerShareBasicAndDiluted $ (0.57)us-gaap_EarningsPerShareBasicAndDiluted $ (0.75)us-gaap_EarningsPerShareBasicAndDiluted