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Subsequent Events	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]
Subsequent Events	15. Subsequent Events Issuance of Series E Redeemable Convertible Prefered Stock In February 2014, the Company issued 204,101 shares of Series E redeemable convertible preferred stock at an issuance price equal to $2.1725 per share and received gross proceeds of $443. In connection with this financing, the Company paid total issuance costs of $1. Reverse Stock Split On June 5, 2014, the Company effected a 1-for-6.28 reverse stock split of its issued and outstanding shares of common stock and a proportional adjustment to the existing conversion ratios for each series of Redeemable Preferred Stock (see Note 6). Accordingly, all share and per share amounts for all periods presented in these consolidated financial statements and notes thereto have been adjusted retroactively, where applicable, to reflect this reverse stock split and adjustment of the preferred stock conversion ratios.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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