Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v2.4.1.9
Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Consolidated Balance Sheets [Abstract]    
Accounts receivable, allowance $ 55us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 55us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Preferred stock, par value per share $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized 10,000,000us-gaap_PreferredStockSharesAuthorized 33,523,600us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued 0us-gaap_PreferredStockSharesIssued 25,923,872us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding 0us-gaap_PreferredStockSharesOutstanding 25,923,872us-gaap_PreferredStockSharesOutstanding
Common stock, par value per share $ 0.001us-gaap_CommonStockParOrStatedValuePerShare $ 0.001us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 500,000,000us-gaap_CommonStockSharesAuthorized 60,952,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 101,621,358us-gaap_CommonStockSharesIssued 21,114,783us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 101,621,358us-gaap_CommonStockSharesOutstanding 21,114,783us-gaap_CommonStockSharesOutstanding
Statement [Line Items]    
Preferred stock, liquidation preference per share   $ 1.07us-gaap_PreferredStockLiquidationPreference