CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Allowance for doubtful accounts (in Dollars)	$ 395,873	$ 106,433
Common stock: par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock: shares authorized	50,000,000	50,000,000
Common stock: shares issued	20,240,882	20,215,882
Common stock: shares outstanding	20,240,882	20,215,882

A valuation allowance for receivables due to an Entity for more than one year from the balance sheet date 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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