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CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
CONSOLIDATED BALANCE SHEETS
Allowance for doubtful accounts	$ 341	$ 332
Preferred Stock Par value	$ 0.01	$ 0.01
Preferred Stock - Shares Authorized	5,000,000	5,000,000
Common stock par value	$ 0.01	$ 0.01
Common Stock- Shares Authorized	80,000,000	80,000,000
Common Stock- Shares Issued	45,433,115	45,124,309
Common Stock- Shares Outstanding	37,687,608	37,378,802
Treasury Stock common shares	7,745,507	7,745,507

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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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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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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