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CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable (current)	$ 1,047	$ 1,467
Preferred stock (in dollars per share)	$ 0.01	$ 0.01
Preferred stock shares authorized (in shares)	1,500,000	1,500,000
Preferred stock shares issued (in shares)	0	0
Preferred stock shares outstanding (in shares)	0	0
Common stock (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized (in shares)	22,000,000	22,000,000
Common stock shares issued (in shares)	15,970,000	15,666,000
Common stock shares outstanding (in shares)	15,586,000	15,282,000
Treasury stock (in shares)	384,000	384,000

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

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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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