CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
CONDENSED CONSOLIDATED BALANCE SHEETS
Account receivable, allowance	$ 433	$ 87
Preferred shares, par value (in dollars per share)	$ 0.00001	$ 0.00001
Preferred shares, shares authorized	230us-gaap_PreferredStockSharesAuthorized	230us-gaap_PreferredStockSharesAuthorized
Preferred shares, shares issued	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Preferred shares, outstanding shares	0us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Ordinary shares, par value (in dollars per share)	$ 0.00001	$ 0.00001
Ordinary shares, authorized shares	200,000us-gaap_CommonStockSharesAuthorized	200,000us-gaap_CommonStockSharesAuthorized
Ordinary shares, shares issued	33,802us-gaap_CommonStockSharesIssued	32,221us-gaap_CommonStockSharesIssued
Ordinary shares, outstanding shares	33,802us-gaap_CommonStockSharesOutstanding	32,221us-gaap_CommonStockSharesOutstanding

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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