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Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance	$ 60,000	$ 60,000
Common stock, par value	$ 0.02	$ 0.02
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	49,503,954	49,411,486
Common stock, shares outstanding	49,503,954	49,411,486

X

- 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.

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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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