Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Preference shares, par value (in dollars per share)	$ 0.00002	$ 0.00002
Preference shares, authorized (in shares)	250,000,000	250,000,000
Ordinary shares, par value (in dollars per share)	$ 0.00002	$ 0.00002
Ordinary shares, authorized (in shares)	4,750,000,000	4,750,000,000
Ordinary shares, issued (in shares)	1,669,036,600	1,669,036,600
Ordinary shares, outstanding (in shares)	1,424,760,750	1,361,886,000

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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