CONSOLIDATED BALANCE SHEETS (Parenthetical) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012 USD ($)	Dec. 31, 2012 CNY	Dec. 31, 2011 CNY
CONSOLIDATED BALANCE SHEETS [Abstract]
Accounts receivable, allowance	$ 496	3,091	16,057
Prepayments and other current assets, reserve	1,648	10,270	10,619
Deposits for non-current assets, reserve	$ 4,262	26,552	23,192
Ordinary shares, par value per share		0.0001	0.0001
Ordinary shares, shares authorized	500,000,000	500,000,000	500,000,000
Ordinary shares, shares issued	142,353,532	142,353,532	142,353,532
Ordinary shares, shares outstanding	135,487,408	135,487,408	141,403,597
Treasury stock, shares	6,866,124	6,866,124	949,935

Reserve For Unrecoverable Deposits, Current.

No definition available.

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- Definition

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.

+ References

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-Publisher FASB

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- Definition

A valuation allowance relating to a written agreement to receive money (at a specified future date(s) more than one year from the reporting date, consisting of principal as well as any accrued interest) for the portion that is expected to be uncollectible.

+ References

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- Definition

Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

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- Definition

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

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- Definition

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.

+ References

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

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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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